E. Bourdon Paris - E. Bourdon Paris Aphrometer standard (2) - Bronze - 1940-1950 - Lot 2 measuring instruments

Lot of 2 antique measuring instruments, sold together as in photo 5.
1. Calibration standard - Aphrometer - Wine manometer - E. Bourdon Paris. To measure the gas pressure in champagne bottles and sparkling wine. Brass gilt body. Needle and tap in brass. In its original wooden box with brass hinges. Interior with green felt. Inscription: E. Bourdon Paris. Era: 1900-1920. Works, needs cleaning.
2. Dial gauge comparator - Mahr - 0.01 mm. To measure thickness and runout in a machine shop. Pink dial. Precision 0.01 mm. Brand Mahr Germany on the dial. In its small original black box in faux leather with brass closure. Round seal on the lid: M. Paris. Era: 1950-1965. Works, needle rotates.

Both are in their original boxes. Vintage condition, signs of use, dust.

Science and technology > Scientific instruments > Old measuring instruments
Keywords: Bourdon, aphrometer, oenology, wine, champagne, Mahr, dial gauge, metrology