The case for Black Cat (as portrayed by Roger Stern and John Romita Jr. in
AMAZING SPIDER-MAN 226-227 ) :
https://viewcomiconline.com/amazing-spider-man-v1-226/https://viewcomiconline.com/amazing-spider-man-v1-227/First appearance in AMAZING SPIDER-MAN 194-195, July and August 1979, by Wolfman and Pollard.
https://viewcomiconline.com/amazing-spider-man-v1-194/And a second story in 204-205 by the same creative team.
https://viewcomiconline.com/amazing-spider-man-v1-204/Although I think Roger Stern developed the character much better when he took the reigns in 226-227.
