ID: 
447
Maker's Name: 
Supplied by Cambridge Scientific Inst. Co. Cambridge
Where made: 
England
Dimensions: 
155 × 36 × 35 cm

A long lead screw at the rear of the machine drives a carriage fitted with a scribing stylus, allowing linear scales to be marked out/ Every fifth and tenth mark are made longer for reading clarity. There is a vernier drum at the end of the lead screw for fine and accurate setting out.