$ cat cards/ir-iran-head-coach-irn-21/faq/variants-faq-31.md
Does the IR Iran Head Coach sticker have a sibling counterpart card?
card: IR Iran Head Coach IRN-21 · category: variants
[Concise Summary]
Yes, this card maps to a sibling counterpart. If this is a standard variant, its golden counterpart ID is registered; if golden, its standard version is linked.
[Structured Data Grid]
| Sibling Variant ID | None |
| Current Variant Mode | Standard Matte |
| Twin Code Reference | IRN-21 |
| Direct Sibling Swap | Requires multi-card offset |
Detailed Investigation & Analysis
Many cards in the collection have twin print editions (standard matte paper vs shiny golden borders). Sibling mappings link standard card IDs with their premium foils. Swap values differ significantly between sibling variants.
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 | IRN-21 |
| Official Name | IR Iran Head Coach IRN-21 |
| Estimated Value | $3.36 USD |
| Album Section | IR Iran |
| Completion Mode | Required Checklist Item |