The spare rim on my new find is marked thus;
Many of the 1925 cars in Australia have fixed lug rims. My new find, also a 25 model has these loose lug rims. Clearly they were still being made in March 1925, so the loose lug rims may well be correct on early 23 models here. This rim has the solid ridge around the inside father than the rolled in ridge. When I fit new tyres I will watch out for further info.
Allan from down under.