Field note

Look at the Cover Before Soaking the Stamp

The postal use may be more important than the adhesive stamp.

The postal use may be more important than the adhesive stamp.

The practical lesson

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