I've never heard or read of this magazine before. The web location where I stumbled across this cover image had this to say about the magazine:
"Photo News Features Hitler #1 is the full title. 1974. The RAREST Marvel magazine publisher![sic] Cover to cover 76 pages of everything you ever wanted to know about Hitler with over 100 photos. Published by Stan Lee!!! This is the only cope[sic] I've ever seen! Your Marvel collection is not complete without this one."