My great-grandfather's 1896 purchase which has passed through several generations of Welsh descendants. I had the works rebuilt and restored the face and glass design. It varies by only about 5-seconds a week now. It sits atop the same bookcase it has resided since the 1930s.
Testing long speeds on a Yashica-24 TLR gifted to me. It had a "Yashica-Mat 124" meter head and nameplate, but everything else, including serial number proved it was a Y-24. The meter was probably replaced from a donor or NOS at some point. And for those wondering, yes it shoots 120 just fine. No drag or anything, spacing is perfect. Mine had a sticker for starting 120 film. When you shoot 12, just take 5 or 6 blank shots before opening up.
Yashica-24, 25-year expired Tri-X