
DIY or affordable preservation framing?
This piece is ~500 years old (an antiphonal page from 16th century Spain or Italy). I found it at the thrift and adopted it, as it was relevant to my undergrad studies. However, I don't think I have the money for preservation framing. What can I do myself or ask for that won't break the bank? It looks like it was last framed mid-century, so I'm not sure what kind of glass it would have. The back is just cardboard and the vellum touches the glass. What do I do?