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General Philatelic/Identify This? : Anyone Familiar with this mark on gum side

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pedroguy
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22 Jul 2015
01:55:07pm
Has anyone seen this mark on the back of a stamp? If so is this a dealers mark? Also is this common, the stamp is Philippines C44 mintImage Not Found

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Bobstamp
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22 Jul 2015
02:35:28pm
re: Anyone Familiar with this mark on gum side

It looks like "Sanabria, Inc." which was the publisher for a series of airplane topicals catalogues in the 1940s and 1950s, maybe even later. I wonder if they also were a stamp retailer.

Bob


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AirmailEd
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22 Jul 2015
02:42:44pm
re: Anyone Familiar with this mark on gum side

That is probably an expertization mark from Nicolas Sanabria. He was one of the premier airmail experts until his death in 1945.

People have valuable stamps expertized to prove they were not counterfeit. I use the word "probably" in the first sentence because your stamp is not valuable. It catalogs $3.75 in Scott's 2014 Classic Specialized Catalog. It might be worth half that retail.

I can think of two reasons why the stamp might be expertized:

1. It appears to be mint never hinged. That would raise its catalog value to $5.75.
2. It may be intended to identify the color variety (C44a). That catalogs $4.00 hinged, $6.00 MNH.

This might also just be a dealer's mark, though I doubt it. I have thousands of airmail stamps from that era, and very few have a Sanabria mark. I think it is much more likely to be an expertization mark. Number 2 is the most likely explanation, I think.

Sanabria is a member of the American Philatelic Society's Hall of Fame. Here is what APS says about him:

"Sanabria was a world-famous specialist dealer, auctioneer and cataloguer of aerophilately. He began his career as a stamp dealer in 1927. His auctions of mainly air mail material began in 1931 and continued through the rest of his life. His Sanabria's Air Post Journal began in 1935 and was continued after his death by his son Nicholas Sanabria.

"In 1936 Sanabria acquired the catalog name, Standard Catalog of Airpost Stamps, from the Scott Stamp and Coin Co., and published three editions of it in 1936, 1937 and 1939. In 1940 he renamed it Sanabria's Airpost Catalogue, and dropped all connections with Scott. He continued to improve and expand it into the airpost catalog of record. The Sanabria Catalog became the most famous in the world of aerophilately; Sanabria was working on the 1946 edition of the catalog when he died."

The last complete Sanabria catalog was published in 1966; a partial version was published in 1972.


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AirmailEd
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22 Jul 2015
02:51:31pm
re: Anyone Familiar with this mark on gum side

Quote:

"It looks like "Sanabria, Inc." which was the publisher for a series of airplane topicals catalogues in the 1940s and 1950s, maybe even later. I wonder if they also were a stamp retailer."



Both Sanabria and his son were airmail dealers. I assume his son (Nicholas) has passed. I didn't find any information on him when I Googled his name.




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pedroguy
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22 Jul 2015
02:55:57pm
re: Anyone Familiar with this mark on gum side

Thanks very much for all the help Here's the faceImage Not Found

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michael78651
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SOR Auctioneer
22 Jul 2015
10:20:21pm
re: Anyone Familiar with this mark on gum side

Here's one thing to remember about expertiser marks on the backs of stamps. Many have been forged. Always retain a certain amount of skepticism when seeing them.

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