Blackstone Solves Sealed Vault Mystery (1949 Crackin' Good) comic books 1949
- 1/4" tear on back cover.
Promotional mini-comic. This 1949's Wisco-Klarer giveaway came free in a box of either Crackin' Good or Laurel Graham Crackers (Carr-Consolidated Biscuit Co.). This promotional comic reprints material from Oscar Comics (Timely). Full-color, 24-pages, 7-in. x 3-1/2-in., all newsprint with ad for all six comics in series on back cover, no cover price. NOTE: Publication date is based on an ad that appeared in Tom Mix #21 (Sept. 1949 issue). Comic has no publication or copyright info.