sewred

I bought a sewing box that had buttons, thread, old measuring tapes, etc.. in it it has 2 clear trays in the top then a big open area in the bottom. In the bottom, there was a package of dressmaker's tracing paper, a large envelope with design transfers and some fabric squares and some blocks already hand sewn together. I'm gonna try to piece the rest together and I was just wondering how old the fabrics are I've not ever seen a lot of them. Also do you think it would take away from it if I had to add some of my newer fabrics to finish some of the blocks?
Anyway here are the pictures I took.