C in oval
The Broad Arrow in the C in the oval is the Canadian Defence acceptance/ownership mark, like the British "Broad Arrow." The number is the inspector. 82's came with and without rear peeps. If it had a peep, it did not have a leaf from what I have seen.
Cooey was part of Winchester Canada. I remember Gun Parts, then Numrich, once had the front sight wings for $1.25 labels as "Unknown sight protectors". Some were actually used by the US during WW2 until the US manufacturers could get going.
"As nightfall does not come at once, neither does oppression. In both instances there is a twilight when everything remains seemingly unchanged. And it is in such twilight that we all must be most aware of change in the air - however slight - lest we become unwitting victims of the darkness." --Supreme Court Justice William O. Douglas