Standard Old & New Wire and Screw Gauge BP (0320)
Index: 0320
Year: ?
Maker: ?
Dimensions: 10.5 x 3.5 x 0.1 cm
Info
Gauge/Calibre for measuring screw and wire gauges.
Scales:
OLD STANDARD WIRE GAUGE: 17 to 0000
NEW STANDARD WIRE GAUGE: 15 to 0000
STANDARD SCREW GAUGE: 0 to 30 (1/16 to 7/16)
Inscriptions:
BP
CHICAGO
