This one does have the Scholer badge on and its all wood, Yours looks a lot newer, is it one of the really large ones with 2 voices of melodeon type reedblocks ?, from the pic it looks like celluloid covered plywood like the chinese boxes rather than plastic, the straps look the same light brown leather and Nails as my old one..
I have fixed the lazy reed now (Muck in the underneath one), the brass reeds give it a mellow sound. the Chinese one sounds fine (rather like a Chinese accordion on one rank as you`d expect) but the lever mech isn`t reliable. When I say "Sounds fine" you have to take into account that I come from a world of PAs and Melodeons where reed blocks and steel reeds are the norm - LOL .
there are two sizes of Chinese 20 button Anglos, Both are all wood believe it or not (Bogseat celluloid coating) the one I have is the smaller of the two and even that dwarfs the old brass reed Scholer as you can see... the larger Chinese model is quite a bit bigger than the one here.