M1917a1 conversion

[Cote_1918]

Here is another one of my helmets, the M1917a1 that used to be a M1917. The lot number is ZC675 or something like that. There is a name in the liner but you can’t see it in the pictures. The name itself is hardly legible but it’s named to a man who was in the 3rd Engineer battalion on Honolulu. There is a date also with the name I think it says August 1 1942. The chinstrap is early and the horse hair pad is missing. 

[thunderbolts45]

Nice ID'd helmet

[GLCC74]

Looks like ZC 205, I have never seen a ZC stamped helmet with a lot number over the high 200's. My highest numbered one is ZC 270. I have seen a few WW1 helmets reused in this manner. Nice bonus on the ID.

[aef1917]

Helmets made by C with lot numbers higher than 299 always have a steel supplier code of U as far as I can tell.

 

This one is a nice example with the earlier riveted chinstrap, circa 1934-37.

[GLCC74]

Yes, my UC stamped helmets are all in the 300 range.

[gap]

On 9/1/2021 at 10:37 PM, aef1917 said:

Helmets made by C with lot numbers higher than 299 always have a steel supplier code of U as far as I can tell.

 

This one is a nice example with the earlier riveted chinstrap, circa 1934-37.

What do you mean by riveted chinstrap? What does one look for? Thanks 

[aef1917]

The rivets were discontinued in favor of box stitching as they tore out relatively easily.

 

[gap]

Got it, thanks 

[Slobo]

Is this what I've seen referred to as the M1917A Transitional Helmet? refurbished M1917s w- the experimental liners and webbing chinstrap that later became (sans rivets) the M1917A1 (and M1)?

[Rhscott]

1 hour ago, Slobo said:

Is this what I've seen referred to as the M1917A Transitional Helmet? refurbished M1917s w- the experimental liners and webbing chinstrap that later became (sans rivets) the M1917A1 (and M1)?

I can not imagine anyone other than a collector breaking it down like that and really can not imagine any user ever issued one calling it anything but a helmet.