
KALA reproduction universal ring dial
I bought this ring dial soon after I obtained a late 19th century ring dial. I used this one to figure out how the ring dial actually works as this one has both a north and a south option (two chances of reading it) as well as a slightly larger dial (6 cm vs 4 cm) and thus easier to read. It actually works find once you have set it up the right way around. As this one came with instructions that made life a little easier.
Data sheet
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