The postal use may be more important than the adhesive stamp.
The practical lesson
- Rates, routes, postmarks, and contents can create significance.
- Removing a stamp destroys the original relationship.
- Photograph and research first.
What to do next
Photograph the object, preserve its context, convert the description into measurable traits, and compare only genuinely similar items.
Compare current collector listings
Use listings to study descriptions, scans, certificates, and market supply. Asking prices are not completed-sale evidence.
Compare collector listings