I bought this at a thrift store a few weeks ago for $5 and know very little. Found info about D&M and Joe Stripp but have not seen this glove anywhere. I had it on Ebay, but killed the auction because I am fascinated with it and want to know more, like the year it was made etc. This might of launched me into collecting.
Contact Joe Phillips here on the forum. His user name is softball66. He has put out a baseball glove resource book listing catalogs with all the major brands. Also look at the websitehttp://www.baseballglovecollector.com. The G10 was mid level in price range in 1935 selling at $5.00. I don't know about the rarity.
While Joe Stripp models are extremely common, this 30's D&M U Notch Buckleback is not. I have never seen another Stripp in this model. Outstanding glove.