Here is another 14” backsaw the wife brought home from auction. It’s an S. Biggin & Sons saw from between 1852-1856 (according to the interweb)
I used that concoction to clean the wood posted a while ago somewhere on the site
1 part oil
1 part Murphy’s oil soap
2 parts wax
It did a great job cleaning the handle except on the front where it looks like the saw got too close to the fire at one point. I thought about sanding it away but decided to keep the history.
Here is a pic of my last two saw restos
-- Greg in Ontario, Canada