We are located in Southern California, U.S.A. All of our business is conducted over the internet here, through our main store. Our entire inventory is available here, our main store, or by phone.
Our online store phone hours are 9am - 4pm, Pacific Time, Monday through Friday.
William J Kozersky, Philatelist
P.O. Box 8724
Brea, CA 92822-5724
USA
(714) 881-1157
customerservice@kozersky.com