Quote Originally Posted by Peter Laidlericon View Post
It's a MODIFIED Mk3 compass. Modified to mils (6400 mils = 360 degrees). These are a bit scarcer(?) than standard degrees compasses. !
As my 4T was till in use in the very late 60's (last 'service' at Base Workshops Catterick in 1968) I though the 'mils-modifies' one was apt, as by then I guess they would have been usig Mils.

I have a degrees one on its way to me but its a 1944 so if I'm being OCD then its the wrong year.