Stamps (Philately)/Expert Profile


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Expertise

My specialty is United States Errors, but I can answer most questions on United States stamps (except covers). I have been collecting U.S. stamps for about 35 years, and U.S. Errors for approximately 25 years. I have been selling both online for about 4 years. I am also a member of the APS (American Philatelic Society)

Experience in the area

As I said above, I have been collecting U.S. stamps for about 35 years, and U.S. Errors for approximately 25 years. I have been selling both online for about 4 years, mostly on Ebay and Bidstart.com.

Organizations

I am a 25+ year member of the APS

Education/Credentials

I went to 2 years of college at Wentworth Institute of Technology in Boston, and received a degree in Applied Science

Average Ratings

Recent Reviews from Users

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    K = Knowledgeability    C = Clarity of Response    P = Politeness
UserDateKCPComments
Laurie Jewett12/08/16101010Wish I could get this kind of .....
Sandra09/16/16101010Thank you so much for your reply .....
Ken Gorsky09/01/16101010 
Ken08/20/16101010Thank you very much for your informative .....
Bonnie08/08/16101010Thank you Mike. Now I know it's .....

Recent Answers from Mike Stern

2016-12-02 2 ct bank check stamp:

Hi Laurie,  Thanks for the question.    Laurie, The stamp on the photo is whats known as a Revenue Stamp. Your research on the issue date 1862-1871 is basically correct, although this would have been issued

2016-10-09 Stamps printed on both sides.:

Hi Prashant,  Thanks for the question,    Prasahant, Although not many compared to how many stamps are issued, there are some stamp issues that have been printed on both sides. Because my specialty is

2016-09-13 nonperforated, misprinted stamp:

Hi Sandra,  My condolences on the loss of your mother, she was very smart to keep them, as they are certainly worth more than normal stamps.  This is know as an imperforate (Imperf)and miscut coil roll

2016-08-20 Color error:

Hi Ken,  Thanks for the question,  Ken, I have actually seen this error a few times, this is what is know as inking error , in this case (as you correctly noted) the red ink has bled into the blue (creating

2016-08-17 35c Chavez error:

Hi Ken,  Thanks for the question,  Ken, you are correct, this is know as a reverse offset error (some also call it a set-off).   These occur during production when a sheet misfeeds into the press. The

 

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