In the complaint Vogt says<
“10 The tenth point of forgery is the inconsistent line spacing on the COLB which a manual typewriter would not do”
All the manual typewriters I’ve used had a variable line spacing mechanism, either a lever or a button that allowed you to set the line spacing just about anyway you wanted. It was a feature made specifically for filling out forms.
I agree with that. The carriage return lever rotates the roller through two or three detentes. You can manually rotate the roller up/down to get these intermediate “click stop” points.