Victorian Arthur Pinfold Archimedian Ring Sizing Tool lava with space in the middle

with space in the middle for a photograph or other small memento

It's modelled in 18 karat white gold and minimally designed

with Austrian marks

Basically they're top stones

8cm length

Victorian Arthur Pinfold Archimedian Ring Sizing Tool lava with space in the middleDATE: Victorian, c. 1900 "WEDDING RING SIZING made interesting. Pinfold's Patent Archimedian Ring Sizing Tool, PERFECTED." Arthur Pinfold, along with his brother George, came up with various inventions during the latter half of the 19th century. Their father, also George, was a watchmaker who trained his sons in the watchmaking business, eventually bringing them in as partners. In due course Arthur planned to expand the business into new markets,