- Brooklyn Gallery
- Brooklyn
Selling supplies including albums, holders, cleaners, folders, mounts, and books. Also offering items for collecting and pricing coins, paper money, and stamps.
www.brooklyngallery.com
- H.R. Harmer, Inc.
- Manhattan
Offering auction services, out-right purchases, appraisals, and collection management for dealers and serious collectors.
www.hrharmer.com
- Champion Stamp
- Manhattan
Offers new collections, lots, covers, and supplies.
www.championstamp.com
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