Missing drawings in parts manual
 

In both copies of the parts manuals I have (P492-12 and P607-12) the drawing for the throttle body is missing. There are no missing pages, but the parts index refers me to a drawing number that doesn't exist. In P607-12, it's drawing 76. It jumps from 75A to 77. In P492-12, it's drawing 87. It jumps from drawing 86 to 88.

It's also missing from P443-12, drawing 75A.

Does anyone have any ideas on where to find these drawings?

Its missing in both my 1965 thru 1967 & 1970 thru 1972 parts catalog