I would very much appreciate a little help classifying this card.
It appears to be an RPP, featuring:
- very fine detail (molecules being smaller than ink drops);
- the characteristic bi-material curl (sad, but useful);
- a nice, shiny/reflective surface;
- a chronistically correct/suggestive UDB (UnDivided Back).
- Bradford Junior College only went by that name from 1932, which is a little late for an RPP;
- the emulsion layer is not physically distinct from the paper card, as is usually obvious at the worn edges of an RPP;
- the image depth-of-field is really good, but might not be good enough for an RPP.
To add to the suspense, I have two other cards of Bradford Junior College, both from publisher Meriden Gravure. They perfected a collotype process in the late 1800s, and achieved quite the reputation for art reproductions, book illustrations, et al.
But those two cards *look* like collotypes, as they are absent the image depth-of-field and shiny/reflective surface and obvious emulsion layer ...
So ... any thoughts?