Look, if your original point had said that almost all car manufacturers, at some point during the 1930's, had made cars with dipped bumpers, I already said I would have agreed with that in my previous post. But that's not how your original statement read, & this last post is unclear to me in what you are truly implying, as I can read this a couple ways. Either you are saying all those manufacturers had made cars with dipped bumpers, or all the cars made by those manufacturers during that time only had dipped bumpers. The first is true, the second is clearly wrong.
better look again buick dodge chrysler desoto auburn olds graham page durant cord just to name a few all had diped bumpers
and caddy and lesalle had holes in the bumpers with a cover plate as well as pontiac to access the crank hole on some cars it may have been cosmetic but on others it was nessesary
So again, I'm not disagreeing the point that any or all those manufacturers, at some point during the 1930's, did make some cars with dipped bumpers, it's obvious they had, but you originally stated "almost all 1930's cars had the dip as it was the only way to get the manual hand crank into the front of the engine to start them when the battery was dead" ... making it seem as if there were basically no cars with crank access holes during the 1930's which had straight bumpers! That was a blanket statement, not narrowing it down to just certain years or makes/models within the 1930's decade, & at the same time you claim that a dipped bumper was the only way to get the manual hand crank into the engine. But that in itself is just completely incorrect, because plenty of straight bumper cars were around from 1930 through 1936 while hand cranks could still be used on the same cars that had those straight bumpers, which proves the center dip bumper wasn't the only way. Of course you know this because you even mentioned a couple, Cadillac & LeSalle.
I even provided a few more logical ways to get a hand crank to the engine for a 1930's era car. One way was with a shorter crank that could be used between a straight bumper & the car, the other way was that the straight bumper just wasn't in the way of the crank handle at all anyway because it was lower than the crank access hole, or the model used a straight 2-piece split bumper where the crank could slide between. So at times the long crank just went over or through the straight bumpers, & as you even alluded to, other times it actually went right through a hole in the solid bumper ... but the bumper was still straight, & therefore not dipped in the center to provide acces to the crank hole for those 1930 - 1936 cars.
I also didn't argue whether the crank hole was a neccessity or it was just cosmetic for some cars, so why you even bring up the Caddy or Lesalle, both makes which mostly had straight bumpers during the early-mid 30's, are just more examples which support the fact that all cars didn't have dipped bumpers during that period & many had straight bumpers, which was the original point I was making, that all cars with crank hole access in the 1930's did not have dipped bumpers, & the majority of all the various cars being made in the 1930's did not have dipped bumpers.
But your latest post above goes beyond just saying almost all, to all had dipped bumpers for those makes in the 1930's you mentioned. Again, it's hard to discern what you are actually trying to say by the way you phrase your statement. I already know & had previously agreed many manufacturers, at some point during the 1930's, had produced cars with dipped bumpers, & it wasn't a reason why I was debating your original point.
To be 100% clear, all I'm saying is that all the cars produced by those manufacturers did not "all have dipped bumpers" during the 1930's for every model of car they had produced, but if you believe they did, then maybe you should go look again at all the Google images & research some of those makes. It's true that in some years & some models during the 30's the dipped bumpers were more prevalent for those manufacturers, but not during all years of the 30's & not with all the makes you mentioned. I can easily post many of those makes within the early to mid 1930's when the hand crank was still definitely being implemented, where models of their cars did not have dipped bumpers at all, so all certainly is incorrect by any stretch of the means. Here are just a few of your listed makes which you just mentioned that put out straight bumpers during the crank years.
1932 Buick 8 original advertisement
1933 Buick Series 50 Sedan
1933 Buick Series 50 Convertible
1934 Buick Series 90
1936 Buick 8 advertisement (most likely didn't have the crank access at all by this time, but still a 30's car)
1930 DODGE BROTHERS EIGHT, DC
1936 DODGE, D-2
1933 Olds 8
1934 Oldsmobile F.34
1935 Oldsmobile F.35
All these models fit within that 1930-1936 time period, all had straight bumpers, & all are produced by makers in your list.
There are so many more examples out there during those years too, I'm sticking with my original assessments.
~ Craig ~