Unique

This is a lovely old Unique Log Log rule, made in England. Check out all the trig formulas on the back.

This one is slightly cupped and warped, and there's a split in the back that's causing the left end to separate a bit. Still, it's a nice early relic.

Oh, by the way, the founder of the Unique company was a chap named Burns Snodgrass. Isn't the internet wonderful?