You may want to contact tobaccoboy from ebay. He might have been the winner of the 12 boxed gloves from Leland's Auction. Some of the gloves looked to be near mint.
The biggest collector of boxed gloves is Jim Daniels. He is at http://www.baseballglovecollector.com. More than likely, he would have something that would interest you.
Hi, I have 2 beautiful Rawlings MIB gloves from the 1950s that Ii could sell or trade: 1958 Harvey Haddix HH Personal Model (mint unused lefty) with box and mid 1950s Mickey Mantle MM Personal Model (NM unused lefty) with MM picture box. If interested, email me at swalt1234@aol.com. Mark