We recently moved back to Seattle. On one of my move-in errands, I noticed a Tandy Leather Factory store, and had to drop in. A number of years ago, all the stores had closed down, but they are now back in business. I chatted a bit with the manager, and we talked about the trade for a bit. I inherited my grandfather's leather tools, and there is a bit of nostalgia going into these stores.
I'm going to need some sort of soft leather hide (or maybe really strong oiled paper??) if I want to make bellows for any tooling forge. According to the manger, Modern leather is prepared using modern chemicals, most of which were probably not available in 4004 BC. But they did have a book on brain tanning, entitled Deerskins Into Buckskins.
I picked up a copy since I was there (I'll have to start reading it soon). It looks like it got a great review on Amazon!
Looks like I'm getting closer to having to kill an animal for this project. I'm not really looking forward to it, but if I used every bit of the animal, then it would be less of a waste. Hide for bellows, hip joint for mortar & pestle, hair for brushes...
Maybe if I make the bow & arrows, and have my Dad shoot a deer, as he can get tags...