Two pages of original Captain America and The Falcon art by Jack Kirby are being auctioned at the Swann Galleries in New York City today (Sep 29). 

#1 is from issue 197 (May 1976), estimated to be $5,000-$7,500
#2 is from issue 207 (March 1977), estimated to be $4,000-$6,000

Just for fun, we’ve included the finished pages to compare.