So in the back of workshop in a dusty box from the back of my grandfather's workshop in a dusty box, I have crocus circa 1935. One bar made with tallow and paste sealed in a metal can with kerosene. The box the bar was in is labeled 1938 and the price was 10 cents (US). The metal can I would guess was from the 1970s, had to pry it open with a screw driver, and reeked of kerosene. No price on it and only a masking tape label.
I'm including pictures for those of you that wanted to know what it looked like. (Assuming I attached them correctly)
Here is the block:
Attachment 169493
Here is the paste:
Attachment 169494
Here is the paste on a knife blade:
Attachment 169495
Here is what happens after you handle the block:
Attachment 169498