In this post, another program from the same 70s era reel to reel that gave us "The Jack Webb Show". It's an episode of "The Bob and Ray Show" carried on the NBC radio network after their successful late 40s series on WHDH in Boston.
I think, based on internal references in the program, that the show originally aired around January 1951 1952. It includes Bob and Ray's Christmas tree warehouse sale and "Mr. Trace, Keener Than Most Persons" solving "The Broken Sweep Second Hand on the Wristwatch Murder Clue".
Perhaps a Bob and Ray expert out there could say if it's in circulation in digital form - I wasn't able to find a copy of it online from the usual suspects.
Update: A comment from Dr. OTR (click the "Comments" link below) convinces me this is probably from January 1952. My mistake ... Please update the name of the file after you download it from the site.