Royal Logistic Corps Bandsman Helmet Plate

[Paddy]

Hello All

I have recently picked up the helmet plate sized badge pictured below. It is identical to the Royal Logistic Corps Bandsman Helmet Plate and is the correct size for a HP but on the reverse of the plate there are 2 bendable blades as opposed to the usual 3 lugs that I would expect to see on a bandsman's helmet plate. Can anyone confirm that these plates were also issued with 2 bendable blades or is this badge for a different purpose?

Many thanks in advance

Paddy