Double Monogrammed Antique Calipers handmade wooden horse I fell in love with

I fell in love with this little mirror the moment I spotted it

giving the blue of the blanket an extra charge

earlyish 1900s I would guess

and the original box with lithographed

Double Monogrammed Antique Calipers handmade wooden horse I fell in love withI've actually started using calipers to measure round and roundish things, and surely someone else could use as pair as well. I like these, probably made by a machinist late 19th c early 20th c or so, especially for the fact that they are monogrammed with three initials on one side (FVZ, which suggests an interesting name1) and four on the other the latter perhaps the abbreviation for a business, or perhaps a High School (HS)? Substantial in size and