Sub-Mariner

Sub-Mariner Comics (1941) #1

First Appearance: Sub-Mariner (Namor) — solo series debut

The first issue of Namor the Sub-Mariner's Golden Age solo series. One of the earliest Marvel (Timely) Comics published, predating the modern Marvel age by decades. An extremely rare and historically significant Golden Age key.

Civil War (2006) #1 (Turner Variant)

Michael Turner variant cover of Civil War #1, the opening issue of Marvel's landmark 2006 event by Mark Millar and Steve McNiven.