Yep real rare.
A few rare things happened for the '25's, including the first metal pickup box, and 'lug' containing small transmission brake drums like the later Aug Improved Car had but with the larger transmission brake drums!
Here is dealer showroom photo, of a tricked out 1925, as its Christmas time, late in year, note the accessories on this T that is also standing on Ford welded wire wheels, and the rear wheels are mounted to those small drum rear hubs!