[Kurt in NJ]

In the first picture there is a wheel stud with weld at the edge, the tops of the shoes the lining color is brownish, the lower section dark grey showing the weave of the lining is the only part contacting the drum ---this shows the shoes are not centered
To see if stamped or cast you need a picture showing the edge of the drum from the other side, ---42 years ago the cast drums had big open holes covered by the wheel(most times called rocky mountain drums), and not much in "repros" could be bought