Last December, I attended a workshop at Huis Marseille in Amsterdam, during which we prepared prints through historical photographic techniques, involving chemicals. One of the results is the print below. It was very interesting to do and I really liked the outcome. The digital photo that was the basis for this print can be seen in this post. This one is called a gum print. Others we did were a tricolor print and a cyanotype.
New / Amsterdam 
I took a 19th century photography course in college a few decades ago and we did these kinds of prints. Some were fun, others were messy and hard.
I only saw your comment now, have been inactive for quite a while. Busy doing other things, but here we are, staying at home! Stay healthy!