Sub-Mariner  No. 1
Yaffa Publishing Group
60 pages, black & white

Page 2
Years of Glory -- Day of Doom
SM #1 (May 1968)

Page 21
Cry... Triton
SM #2 (June 1968)

Page 41
On a Clear Day You Can See... The Leviathan
SM #3 (July 1968)