Marvel 75th Anniversary Retailer Incentive
Sketch Covers by Alex Ross
Marvel Comics, March 2014 - February 2015:
These 12 Alex Ross sketch editions were produced one per month (they are dated from March 2014 to February 2015) to celebrate Marvel's 75th anniversary. Each is a 1:300 Retailer Incentive edition, with the exception of Avengers #25, which is a 1:200; each also bears the Marvel 75 years logo on the front cover, with the exception of the Fantastic Four #1.
Some of these variants can be quite hard to get hold of, especially where the issue had a low overall print run such as Captain America #22 and Savage Hulk #1.