Sub-Mariner #3 GD Signed w/COA Roy Thomas 1968 Marvel Comics

This is a vintage 1968 Sub-Mariner #3 signed by Roy Thomas w/COA-certificate of authenticity (size is approx: 5 x 8 inches), complete and published by Marvel Comics.  The comic would grade a Good condition and heavily damaged with complete Off-White interior pages.

View High Resolution Scans of Front and Back Cover Here.