We wish that we could personally greet you at the door, as we would in a brick and mortar store. However, this medium prevents such a face to face meeting. Nonetheless, we invite you to look around and ask questions. Bill, our owner, is a member of the APS, RPSC, CPC, CS&CSS, and the IPDA. We stand behind our offers and will promptly refund if you are unhappy with your purchase.

We are located in Southern California, U.S.A. All of our business is conducted over the internet through select listings at eBay, eBid, and full listings at this, our main store, or by phone. All of our online stores are open 24 hours, 7 days a week, while our phone hours are 9am - 4pm, Pacific Time, Monday through Friday.

William J Kozersky, Philatelist at eBay.com. This store features select Christmas Seal Collections, Charity Seal Collections, Literature, Christmas Seal Stamp Albums, plus Supplies from our inventory.

William J Kozersky, Philatelist at eBid.net. This boutique shop offers select Charity Seal Collections, Literature, Christmas Seal and Charity Seal Stamp Albums, plus Supplies from our inventory. The store is currently being stocked and will reopen in January 2020.

William J Kozersky, Stamp Co. Bookstore Powered by Amazon. This boutique shop offers a selection of       books on Stamp Collecting, Coin Collecting, Scripophily, and Postcard Collecting. This store is currently being remodeled and will reopen in the Spring 2020.

IPDA Member Dealer. Buy with confidence that the item you purchase will be as described. We guarantee that you will receive this item as described. The Internet Philatelic Dealers Association (IPDA).