I am sure everyone here has heard of Wilson's Photographic Magazine (1917) Digitized by Google. Maybe not, for those that haven't here is a link the Info in Google Books, It is simply amazing. It talks about all sorts of Vintage photography and so far it seems to be free to read thruogh google. I have been reading volume 54 and on Page 535 a section called THE WORKROOM "Doretypes and how to make them", many sections all of great interest another Making A Ground-Glass Screen. Simply amazing to me. Digital has really taken a back seet of late. I wish I had not waited so long to dive into alternative photography.