Ahh, old rulers. How many does a person need? I hope it's not less than 12. :D
I'm pretty sure I have more than 12.
Very nice. I've never seen or heard of one of those.
Pretty cool. I have a couple of metal rulers that are curved to fit the platen. More must haves for the typing accessory kompleatist!
I've never seen a curved ruler for a typewriter!
That's pretty cool. Thanks for sharing it with us.