The WW2 Royal Enfield WD/C has a front brake drum and hub very similar to that, if not identical. 350cc sidebanger, 1941 and 1942. Front speedo drive and all. Is that a khaki green look to it. ? Could have been on other small models of about then too, they made rather a lot of them, and they are not well known.
The rim lacing pattern looks rather odd though.
The original rim had an equally odd 3 spokes in a row on the rim and then one offset, so maybe its been relaced up with the wrong rim, and someone has adapted it ? !!
