Hi all
More lovely restores while I slept
Regarding the backdrop. I'm not sure about this but I have the feeling/hunch - call it what you will - that photographers' studios had a few 'suitable' hangings that the sitters could be posed in front of with complementary furnishings

The hangings would have been a bit like theatre sets: maybe on canvas or board and painted in oils or tempera with varnishing. Over time, the hangings would get that brown/yellow glazing that comes with age or tobacco smoke.
This is just my feeling about it - maybe right, maybe wrong

Oh well, back to list making

Gadget