Start a valid, intact Ribwich at 150 Credits, then add the supported production-date, packing-facility and edition adjustments. Missing, torn or counterfeit packaging overrides that calculation: the final value is 40 Credits regardless of bonuses. The minimum possible appraisal is also 40 Credits.
The first-run bonus and the first-month bonus are different. A first-production-run sandwich adds 80 Credits, but the extra 50 applies only to the exact first month, 01/425, or the exact final month, 12/438. A January date in another valid year does not qualify just because it is the first month of that year.
Use the flat-value override before adding anything
An appraisal can go wrong before arithmetic begins. If the item has missing, torn-open or counterfeit packaging, stop the bonus calculation and use the flat forty-Credit value. A rare-looking filling cannot rescue an invalid wrapper.
This is an override, not a forty-Credit deduction. Do not subtract forty from the base value, add edition bonuses, and then submit the result. The rule replaces the result. That difference matters most on a sandwich which appears to have a large rarity premium.

Check validity before adding rarity bonuses.
Inspect the wrapper, production information and identifying features before treating a Ribwich as valid. The packaging-authenticity guide covers visual counterfeit recognition in more detail; for appraisal, the required takeaway is that any failed authenticity condition sends the whole valuation to the same fixed endpoint.
The floor has a separate role. Even when you are applying a valid set of adjustments, a final Ribwich appraisal cannot fall below forty Credits. The packaging override and the minimum value happen to share that number, but they are not instructions to add the floor as another bonus.
Build the calculation from a fixed checklist
For a valid, intact item, use the same order every time:
- Begin with the 150-Credit base value.
- Identify the production run and add eighty for the first run when applicable.
- Add fifty only for 01/425 or 12/438.
- Apply the packing facility's positive, negative or neutral adjustment.
- Add the Deluxe Edition premium only when its required features are both present.
- Add the double-meat-patty premium when the valid item actually has two patties.
- Recheck that no earlier condition requires the flat forty-Credit value.
Writing the running total as separate components helps prevent one feature from being counted twice. Date, facility and edition describe different properties, so a valuable sandwich can legitimately receive several adjustments. The question is whether each adjustment's own condition is met.
Do not use the customer's offered payment, the sandwich's appearance as food, or what another visitor paid as the appraisal base. The task asks for the guide value calculated from the object. It is not a normal negotiation over your shop's sale price.
Apply production dates exactly
There are two valid production windows. The first runs from January 425 through December 429. The second runs from January 432 through December 438. A missing or invalid date, or a date outside those windows, makes the sandwich counterfeit.
| Date condition | Appraisal adjustment | How to read it |
|---|---|---|
| Any valid first-run date | Add 80 Credits | Applies throughout the first production window |
| Exactly January 425 | Add another 50 Credits | The first month of all production |
| Any valid second-run date | No production-run bonus | The base value still applies |
| Exactly December 438 | Add 50 Credits | The final month of all production |
| Missing or invalid production date | Final value becomes 40 Credits | Do not continue the normal bonus calculation |
The gap between the runs is not a third ordinary category. A date in the intervening years is outside the valid windows. Likewise, being numerically earlier does not automatically make a sandwich a more valuable first-run example; it still has to be within the actual first-run range.
For a valid 01/426 sandwich, the date contribution is eighty, not one hundred thirty. It belongs to the first run but is not the first month in which Ribwiches were made. For 12/438, the date contribution is fifty, without the first-run eighty.
Read facility numbers as three groups
There are thirty-five valid packing facilities. Six have the high-quality adjustment, five have the low-quality adjustment, and the remaining valid numbers are neutral. A valid number absent from the special lists is not automatically counterfeit.
| Facility group | Numbers | Adjustment |
|---|---|---|
| High quality | 01, 02, 05, 08, 21, 34 | Add 50 Credits |
| Low quality | 07, 15, 18, 26, 31 | Subtract 50 Credits |
| Other valid facilities | Other numbers from 01 through 35 | No adjustment |
| Missing or invalid facility | No valid facility identifier | Final value becomes 40 Credits |

Read the packing facility number rather than guessing its category.
The neutral group is important because most of the valid facility numbers do not appear in either special list. Do not force every number into high or low quality. A facility such as 03 is valid but contributes zero; a number above 35 fails the facility validity check instead of contributing a larger penalty.
When an appraisal differs by fifty Credits, revisit this classification and the exact-month bonus. Both involve fifty, but they are independent. Changing the facility adjustment to compensate for a misread date may accidentally produce a plausible total while leaving the method wrong for the next item.
Add edition bonuses only after validation
A Deluxe Edition Ribwich requires both a sesame bun and extra pickles. When that valid combination is present, add 300 Credits. Only one of those features is a counterfeit condition, not half of the deluxe bonus.
A valid double-meat-patty Ribwich adds 800 Credits. That is a separate property from the deluxe combination. Do not assume that every deluxe sandwich has double meat, or that seeing a second patty automatically establishes a valid deluxe edition.
These large bonuses make the initial wrapper check especially important. If the packaging is torn, an apparent deluxe or double-patty feature does not justify bypassing the flat-value rule. First decide whether the item is eligible for the ordinary calculation; only then ask which premiums it earns.
The required Davre logo and the production-run-specific Ribwich sticker remain authenticity checks. Their absence or inconsistency affects whether you can use the bonus calculation at all. They are not additional positive price modifiers to stack on top of a correct result.
Work through representative calculations
The following are hypothetical valid examples designed to show the arithmetic. Each assumes intact, authentic packaging and no unmentioned edition feature. If an actual item's inspection reveals an invalid condition, replace the example calculation with the forty-Credit result.
Ordinary first-run sandwich from a neutral facility
Take a sandwich dated 06/427 from facility 03. Start at 150, add eighty for the first run, and apply no facility adjustment. The resulting value is 230 Credits.
June 427 is within the first window, but it is neither 01/425 nor 12/438. Adding the exact-month premium here would overvalue the item by fifty. That is the same kind of mistake as reading every January as the historical first month.
First-month sandwich from a high-quality facility
For 01/425 from facility 01, add the base 150, the first-run eighty, the exact-month fifty and the facility fifty. The total is 330 Credits before any valid edition premium.
All three adjustments apply because they describe different properties. The first-month bonus does not replace the first-run bonus; it is an additional adjustment for that exact date.
Final-month sandwich from a low-quality facility
For 12/438 from facility 07, begin at 150, add fifty for the last month and subtract fifty for the low-quality facility. The total returns to 150 Credits.
This is a second-run sandwich, so there is no eighty-Credit first-run adjustment. Equal positive and negative adjustments can cancel without either being an error.
Second-run deluxe sandwich from a neutral facility
For a valid 05/435 sandwich from facility 03 with both deluxe features, add 300 to the base 150. The value is 450 Credits.
There is no date premium in this example. If it also had a valid second meat patty, that separate eight-hundred-Credit addition would bring the total to 1,250 Credits. Do not add it unless the actual item has the feature.
Torn wrapper on an otherwise valuable sandwich
A torn wrapper means the value is forty Credits. You do not need to finish counting production and edition bonuses. This example illustrates why doing the validity check last can waste time and make a player reluctant to discard an impressive-looking running total.

Use the guide to check each separate adjustment.
Double-patty sandwich with a low-quality facility
Consider a valid second-run sandwich from facility 15 with two meat patties and no deluxe features. The base is 150 Credits, the facility subtracts fifty, and the double-patty feature adds eight hundred. The resulting appraisal is 900 Credits.
The low-quality facility reduces the price but does not cancel the rare filling. Conversely, the rare filling does not make the facility high quality. Keep both entries in the calculation so you can see why the final number differs from a neutral-facility example. If the wrapper on this same item were counterfeit, the full nine-hundred-Credit calculation would be replaced by forty Credits rather than reduced by another penalty.
Diagnose a wrong submitted appraisal
Keep the appraisal result separate from the item value. An appraisal slip records how the attempt went; it is useful for comparing your submitted total with the correct one. The fee you earn is not itself the number to submit as the sandwich's value.
If the result is wrong, first check whether you missed a flat-value condition. Then check the date window, exact historical month, facility group and edition requirements in that order. Rebuilding the total from those components is more reliable than changing a single number until the outcome looks familiar.
A wrong estimate does not establish that facility values change from sandwich to sandwich. Verify the rest of the object before attributing the result to the facility. With an authentic wrapper, the correct date category and independently checked bonuses, the value follows a repeatable calculation rather than a guess about what the customer might accept.