farnetti
Western Thunderer
Ian Rathbone, in his book on painting and lining, recommends Haff bow compasses for parallel edge lining. At the moment, although not advertised, this compass, normally 57 euros is being sold at 25 euros plus P&P 9 euros.
The needle depth can be adjusted by around 3mm, the distance from jaws to needle up to about 12mm, and the jaws up to around 3mm (0.1 to 0.3 is specified, practice will tell).
I don't know if I was just lucky but if you are thinking about one this might be the time.
Ken

The needle depth can be adjusted by around 3mm, the distance from jaws to needle up to about 12mm, and the jaws up to around 3mm (0.1 to 0.3 is specified, practice will tell).
I don't know if I was just lucky but if you are thinking about one this might be the time.
Ken