Vintage Mahr 45–70 mm disc micrometer with black grip panels and handwritten number 76.

Vintage Mahr Disc Micrometer 45–70 mm – Gear Tooth Span Gauge

€145,00 EUR
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Vintage Mahr 45–70 mm disc micrometer with black grip panels and handwritten number 76.
  • Vintage Mahr 45–70 mm disc micrometer with black grip panels and handwritten number 76.
  • Rear view of the Mahr disc micrometer showing black grip panels and an engraved name on the frame.
  • Close-up of the oval Mahr maker’s mark on the worn metal micrometer frame.
  • Close-up of the Mahr micrometer scale, knurled locking ring and spindle with a disc-shaped measuring face.
  • Mahr micrometer frame marked 45–70 mm and 1/100 mm, showing scratches from use.
  • Close-up of the two opposing disc-shaped measuring faces on the vintage Mahr micrometer.
  • Vintage Mahr 45–70 mm disc micrometer with black grip panels and handwritten number 76.
  • Rear view of the Mahr disc micrometer showing black grip panels and an engraved name on the frame.
  • Close-up of the oval Mahr maker’s mark on the worn metal micrometer frame.
  • Close-up of the Mahr micrometer scale, knurled locking ring and spindle with a disc-shaped measuring face.
  • Mahr micrometer frame marked 45–70 mm and 1/100 mm, showing scratches from use.
  • Close-up of the two opposing disc-shaped measuring faces on the vintage Mahr micrometer.
Vintage Mahr Disc Micrometer 45–70 mm – Gear Tooth Span Gauge

Vintage Mahr Disc Micrometer 45–70 mm – Gear Tooth Span Gauge

€145,00 EUR

A vintage Mahr disc micrometer with broad, disc-shaped measuring faces and a metal frame with black grip panels. A distinctive piece of precision workshop equipment for collectors of vintage measuring tools.

Tools of this type were used to measure across gear teeth, bringing a small piece of traditional mechanical workshop history to a tool collection or display.

  • Brand: Mahr, with an oval logo on the frame.
  • Seller identification: Carl Mahr Esslingen Zahnweiten-Messschraube, model 40 AW, intended for gear tooth span measurement.
  • Marked measuring range: 45–70 mm (approximately 1.77–2.76 inches).
  • Marked scale graduation: 0.01 mm.
  • Serial number reported by the seller: 274106.
  • Approximate dimensions: 21 × 10 × 3 cm (8.27 × 3.94 × 1.18 inches).
  • Weight: 375 g (approximately 0.83 lb).

Condition: Used vintage condition with visible scratches, signs of use, the number 76 and an engraved name. According to the seller, the mechanism turns smoothly and has been tested; the instrument is not calibrated. The scale graduation does not guarantee its current measurement accuracy. The photographs form an integral part of the condition report.

You will receive the exact item shown. Tracked shipping is charged separately.

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