$ cat cards/eren-derdiyok-599-2010/faq/trading-faq-51.md
How do I add Eren Derdiyok to my duplicates swap list?
card: Eren Derdiyok 599 (2010) · category: trading
[Concise Summary]
You can increment the duplicate counter for code 599 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 599 |
| 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 | 599 |
| Official Name | Eren Derdiyok 599 (2010) |
| Estimated Value | $1.33 USD |
| Album Section | Helvetia (2010) |
| Completion Mode | Required Checklist Item |