Wwi Prussian Insignia certificate_of_authenticity 1916 and stated his trade

1916 and stated his trade as Teamster

At Leewburg on 7th July

this time to Stoker Petty Officer

Canadian Hospital

dated July 15

Wwi Prussian Insignia certificate_of_authenticity 1916 and stated his tradeWWI Prussian Insignia Three Collar Disks (two are silvered copper, unmarked, 29. 5 mm each, flat insert on their reverses; one is bronze, marked "EXTRA FEIN E. A. Q." on the reverse, 29. 6 mm); and two Cuff Buttons (silvered bronze, one marked "EXTRA FEIN A & S" on the reverse, 24 mm, flat insert on the reverse; the other is marked "EXTRA FEIN", 25 mm, with a recessed flat insert on the reverse). Each have intact loops, light contact and wear, very