Stamps (Philately)/PSE


PSE  is re locating to the last Vegas area in early 20th.   Have you dealt with us in the past.   I know we have on ebay.

So....   any advise?
Are you interested  in working with PSE?

Caj Brejtfus
Professional Stamp Experts, Inc.


As a member of APS I primarily use APEX for certificates, and have not yet had the occasion to use PSE's service.  When is PSE relocating?  Please let me know at  Thanks!

-Mark Leon

I deal in United States Stamps
American Art Glass
and Halloween Costumes!

Stamps (Philately)

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Mark Leon


I am a collector of United States postage stamps, and also a stamp dealer. I`m a member of the American Philatelic Society (APS). My principle area of interest and expertise is in United States Stamps.


I've been selling stamps on the internet since early 1996. I maintain a stamp web page that concentrates on mint US stamps issued generally between 1890 and 2009. I'm an active seller on since 1996, under the user id "mleon". You can find my web page at

I have a Bachelor of Science degree in computer science from the University of Nevada at Las Vegas, 1984.

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