Mr. Sinn has appeared in 7 comics from Magazine Enterprises since 1950. The most recent cataloged appearance dates to 2017. Most cataloged appearances come from Jet Power.
Gwandanaland Comics
4 issues
215 INK
3 issues
Collected Edition
Dark Horse Comics
1 issue
Magazine Enterprises
139 issues
I.W. Publishing
2 issues
Marvel Comics
Jet Powers (2017)
Frankenbabe (2015)
Oct 26, 2016
Bob Powell's Complete Jet Powers (2015)
Oct 07, 2015
A-1 Comics (1944)
Nov 15, 1949
Jet Power (1958)
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