2×2 cardboard flips (window cardboard + mylar) are the show-floor standard for decades—cheap, stackable, white margin for date, mint, purchase price notes without touching metal.
Seal the window well (staple or archival adhesive) and use acid-free board—cheap cardboard yellows and stains over time.
Scratch-free workflow
- Coin in window, face visible.
- Close film without pressing relief.
- Pencil on margin—no permanent marker bleeding.
When 2×2 vs capsule
2×2 for temporary sort and mail. Capsule for multi-year storage of key coins.
Amazon
PVC-free windows; archival stapler if you staple.
- 2×2 box so stacks do not bow.
- Not a capsule replacement for mirror proofs.
- Affiliate-ready.
Check offers for 2×2 cardboard coin flips on Amazon:
Compare prices and options online
View on Amazon
Affiliate link