A marketplace page alone cannot prove that postage is genuine. When checked September 1, 2026, the indexed Tanga listing for 100 Forever stamps was sold out and displayed $59.99, free shipping, a 30-day warranty, returns, and customer reviews.
Those listing details help evaluate the transaction, but they do not independently authenticate the stamps.
Tanga listing checks
- Confirm the exact issue, year, quantity, and format.
- Compare the total with the current official face value.
- Review the seller identity, fulfillment source, return terms, and payment protection.
- Save screenshots of the listing and order record.
- Do not rely on star ratings or stock photos as proof of authenticity.
After delivery
Compare the design, pane layout, perforations or die cuts, print clarity, backing paper, and package markings with an official issue record. Keep the envelope and receipt until the stamps have been checked.
A very low price is a risk signal, not automatic proof. USPIS warns that counterfeit postage is often offered in bulk at major discounts.
Use our counterfeit stamp checklist for physical inspection. Suspected counterfeit postage can be reported through the USPIS guidance page.
Listing status checked September 1, 2026. Availability, price, seller, and policies can change.