That Looks exactly like the stuff I used to buy When I was making..... My Bees Wax /Mutton tallow/Bayberry wax mix for GOEX for muzzleloading! In the 1990's! The blocks of bees wax were super clean!
However the Bayberry wax dried up and they decided to source the mutton tallow from Australia ! With import duties and FDA involved it was impossible to produce at Good price point to sell! It was called "Bee-Baa-Bay" and I still make it for myself for my flintlock shooting!