701095 Coach maker\'s adjustable compass ploughs, mid 19th century (wood, gunmetal & sprung steel) (see also 701094) by Falconer, Thomas (19th Century) (attr. to); David Russell Collection; (add.info.: Left, 631, stained mahogany, 17.1cm. Right, 632, ebony, 17.5cm The single stem fitting into the stock is strengthened on both by the sturdy lower gun-metal plate reminiscent of the steel plate on Gabriel??? ploughs made some decades earlier. The sprung-steel thread-adjustable fence on both allows use for circular and compassed work. However, there are major differences. On 631 the peg handle makes for easier handling than the squirrel tail on 632, and the hollow-faced iron serving as cutter and nicker on 631 contrasts with the separate cutter and forked nicker on 632. ); British, out of copyright.