Meaning of two markings, Garde -Haube

[argonne]

Hi fellow collectors,
does anybody have an idea about the meaning of these two markings at the inside of the rear visor of a M15 Garde Mannschaftshelm?
First stamp on the left:
KBAG (Kriegsbekleidungsamt der Garde), and under of it KBA (?)(Kriegsbekleidungsamt), or MBA (?), or maybe MGA (Maschinengewehr-Abteilung) ?... very difficult to read...
Second stamp on the right:
FB1 (?) or FR1 (?) or FBI (?) or FRI (?)......

Philippe :salute:

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[spikeymikey]

I reckon 'MGA' could be for the Machine Gun detachment but I believe they normally wore a Shako. But after 1915 who knows?

'F' on it's own on the right side often stands for 'Feldbrauchbar' but mainly in lower-case, I think. Could be for 'Fusilier'???? But with the 'R' ....hmmmm...I'm only guessing here!

If it's a 'B' it could be Fusilier Battalion, I suppose?

 

[stephane_avesnes]

I see :
KBAG + date, which is the classical marking for Garde units during the war, then in a square : FB or FR, if it's FB, that's Fusilier battalion (1st bataillon), otherwise that's (Garde) Fusilier Regiment, I'm more in favour of the FB option, really looks like a B
hope this helps
steve
website : imperialhelmets.com