WNG with - I think- a upgrade Matchless (or downgrade ??) front fork.
horn has been moved to the side as with this front fork it would get hit.
field stand still in place, rear stand folds up pretty far.
Wiring around the rear brake suggest a brake light has been fitted.
Tank looks like having a panel type, odd for a WNG exept on the really very early ones, maybe a pre or early postwar NG replacement?