NCO Rank Insignia location on Combats 70s-80s

[Scott Bentley]

Hello Gents,

I'm trying to narrow down the period of time when NCO Rank Insignia slip-ons were worn on the shoulder epaulets of the Combat Uniform. Specifically between the early 70s and the late 80s.

I've got many photographs from the early 70s (October Crisis) showing rank chevrons sewn on the sleeves. Then at some point they went to the shoulder epaulets in i'm assuming in the late 70s or early 80s, and then went back to the sleeves again in the mid 80s. Plenty of photos of the rank back on the sleeves in the mid 80s, I'm assuming because the P82 Webbing covered the shoulder epaulets to a greater extent.

Anyway, anyone know with some authority on what years this covered?

Thanks