IBM Punch Cards

[Keys]

Well pulling out my Hero-Jr robot for some photos I noticed the two card 
sample booklets I go a few weeks ago.  There seems to be over 300 different 
card stock samples in the two salesman booklets. One is called "general 
Purpose Card Sample IBM Data Processing Cards" form # 570-0275 9-67 and the 
other is "IBM Standard stock card formats" form # 570-0440 from around 1970. 
I had no idea of all the many card formats IBM had.