Sorry bout that Tiny, I thought we were being more specific and talking about AD's, especially a "55 3/4 235". It no doubt would have been used for a fast idle in your case. Maybe the hand throttle was one of those leftovers like the provision for a hand crank. Our experts here say your ‘38 came equipped with a hand crank but the crank tool itself was discontinued with the AD even though the balancer drive dog and grill hole still remained for years.
Yes "I would be interesting to see some period advertising related to the hand throttle." I'd like to discover what GM's intent was also. All manufacturers were always trying to save a penny so I'm suppressed they would have left it once they figured out the fast idle cam. You would have thought it would have been an option after that. Like I said before, people being as inventive as they are, there are probably a hundred different opinions as to how it cold be used.
Ahhh, those little details, what fun they are!!!!
Denny Graham
Sandwich, IL
