$ cat cards/update-edition-head-coach-update-21/faq/rarity-faq-20.md
Is there a promotional stamp version of the Update Edition Head Coach sticker?
card: Update Edition Head Coach Update-21 · category: rarity
[Concise Summary]
Promo stamped editions are released in limited numbers during regional events and carry distinct serial markers.
[Structured Data Grid]
| Promo Stamp Available | Yes (Regional promos) |
| Event Stamp Multiplier | 4.2x price premium |
| Border Overlay Type | Silver Holographic |
| Registry Category | Special inserts |
Detailed Investigation & Analysis
Panini issues event-specific promo packs during sponsor tours. Stamped editions feature a holographic logo overlay in the top corner. Stamped versions trade at a 4.2x market multiplier.
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 | Update-21 |
| Official Name | Update Edition Head Coach Update-21 |
| Estimated Value | $3.40 USD |
| Album Section | Update Edition |
| Completion Mode | Required Checklist Item |