$ cat cards/mcdonald-s-head-coach-mcd-21/faq/trading-faq-51.md
How do I add McDonald's Head Coach to my duplicates swap list?
card: McDonald's Head Coach MCD-21 · category: trading
[Concise Summary]
You can increment the duplicate counter for code MCD-21 in the Swap Tracker utility. This registers the card as a tradeable asset in your public export string.
[Structured Data Grid]
| Swap Tracker Command | add duplicate MCD-21 |
| Export Location | Swap Tracker Output |
| Status Flag | Tradeable Duplicate |
| Export Format | Base64 checklist hash |
Detailed Investigation & Analysis
The Swap Tracker aggregates duplicate cards in a central export list. Incrementing duplicates registers items in your database string. Counterparties can paste this string to scan matches instantly.
Additional notes for collectors: Ensure checklist entries are verified before confirming trades. Standard trade ratios are calculated relative to card popularity.
[Album Context Specs]
| Card Code | MCD-21 |
| Official Name | McDonald's Head Coach MCD-21 |
| Estimated Value | $6.74 USD |
| Album Section | McDonald's |
| Completion Mode | Required Checklist Item |