"R.H." writes:
Just added another set:

http://puzzlephotos.blogspot.com/

If you haven't seen it already, over the weekend I added a scanned shot from
an 1894 edition catalog, that verifies #313, the burner cleaner. It's on
the answer page to last week's post, thanks to Bill for sending that to me.

Rob



#315 A pair of universal keys for warded locks. The wide side cuts allow
the keys to pass the wards. Not necessarily very secure, as a
universal key could be produced from a standard key with a file.

scott