Question I have inherited a collection of entires. Some have numbers like U 429. How do I research the value of these envelopes. Some are plain and some are pre-addressed.
Answer Hi Esther,
You will need to buy a Scott Specialized Catalog to identify and price them. You can usually either 1. Borrow one at your local library or 2. Buy one online at places like eBay or Amazon. For your purposes, even a used one a year or two old will be useful and accurate.
Or you can buy a new one from dealers such as Subway Stamp Shop or directly from Amos Press.