Hi Bill, I am at work and don't have Mazeus in front of me, but the matching collars to M.154 should be a pair of Alberta provincial coat of arms with a numeral 50 on them (perpetuating the 50th CEF Bn IIRC)??
Link to a photo of the
pair.
Link to a wartime photo of a Capt. Rogers in
SD. (Red Deer Archives)