Sub-Mariner 1968 #18 - 7.5 - $15.00

Ad for a weight-gain drink.

Ad for karate book and life-size dummy, $1.98.

On-sale date from 1969 Periodicals, Copyright Office, Library of Congress with a correction factor of plus 28 days.

• - Romita alterations on man holding guitar per Nick Caputo, 2006.
• - Inside front cover. Ad for novelty items from the Johnson Smith Co.
• Side by Side with... Triton! - Namor loses his water-breathing powers
• - Advertisement for Baseball game from Strat-O-Matic Game Co. located between story pages 3 and 4.
• - Includes: Stan's Soapbox; Items; The Mighty Marvel Checklist
• - Ad for sales people for greeting cards. Between story pages 6 and 7.
• - Between story pages 9 and 10.
• - Ad for Matchbox home display units, on top half of page between story pages 15 and 16.
• - Thumbnail ads for stamps and novelty items, on lower half of page between story pages 15 and 16.
• Shop by Mail - Thumbnail ads for a variety of products including stamps, novelty items, and back-issue comic books, located between story pages 18 and 19.
• - House ad for Tower of Shadows (Marvel, 1969 series) #1 and Thor (Marvel, 1966 series) #168, located on top half of page.
• - Advertisement for Spider-Man and Thor plastic pillows for $1.50 each and the Merry Marvel Marching Society Membership Kit for $1.00 each, located on lower half of page.
• - Advertisement to sell Grit magazine from Grit Publishing Co, located on upper half of page.
• - Located on lower half of page.
• - Letters from: John Kunz, Nick Ouzas, J. Scott Stewart, Masao Kano, J.C. Rosenzweig, and Bob Krotts; includes Know Ye These, the Hallowed Ranks of Marveldom.
• - Ad for the Famous Artists School.
• - Inside back cover. Ad for the American Basic Science Club, Inc.
• - Back cover. Ad to sell greeting cards to earn money.