The one on the far left seems to me to be a wwi german/prussian officers shoulder board. Ive seen them before and it seems like it but dont quote me lol im still a novice at wwi.
17 Year Old
Heer 275th Infanterie Division Reenactor
Currently restoring a 1939 DKW Rt100 3PS
First board is indeed WW1 vintage, second is Feuerschutzpolizei and last is a strap for Heer infantry.
Hello I want to thank everybody for having helps me to authenticate the item that I have displayed very appreciated Thank you Meech