I have issue #12 of Old Cardboard right in front of me. Yes, TIK & TIK have "Burke" misspelled in their ad. I also viewed most of their proofs at the National in Cleveland and talked with Terry a bit about them.
I ended up buying this from Terry as a companion piece for my Gehrig photo of the same image...
1928lougehrigsportingnews.jpg
And a year later I won the DiMaggio/Burke 1936 R312 Proof Photo in a Mastro auction...
1936dimaggioBURKE.jpg
It's an exact match to the image in the Old Cardboard Magazine as the silver gelatin kind of frames the photo on he top at Joe's hat and down the left boarder. As well as Joe's name typed on the bottom.