Stamps (Philately)/stamps

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Question
How do you un-equivically determine if a stamp is the "blueish-paper" (35% PULP) stamp?  I have one without watermark, whose perfs put in as a contender...but it doesn't look particularily blue.

Sincerely,
John

Answer
If it has no watermark, it can not be the real bluish paper (which is actually gray, not blue) because no unwatermarked stamp was ever issued on bluish paper.  I always recommend to collectors that to learn how to correctly ID bluish paper, spend the money to purchase one that comes with a recent expert service certificate, then use that stamp as your reference copy.  A Scott #357 or #358 with small faults can be purchased for under half Scott value and at that price, it's a bargain to help you learn how to correctly ID bluish paper.  Hope this helps.

Bill

Stamps (Philately)

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William R. Weiss, Jr.

Expertise

United States - Virtually any kind of stamp, cover, essay, proof, cancel, covers, etc.

Experience

I have my own expertizing service - Weiss Expertizing. See here; www.stampexpertizing.com.

Organizations
APS (Life member), USSS, UPSS, USPCS, USCC, EFO Club

Publications
Many different.

Education/Credentials
High School

Awards and Honors
Too numerous to list here - I have been exhibiting for over 40 years, so have accumulated lots of awards. Also for books I have written.

Past/Present Clients
Thousands different. We ran Public Auctions for 25+ years and I have been a dealer since 1972.

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