Retractable Depth Gauge pouce de paris (0796)
Info
Kind of depth gauge in with different scales. Made in brass.
One of the scales is centimeter. A second one seems piuce de paris (approx 27mm).
On the inner bar, the scale is centimeters and what seems like Paris Point (approx 6.6mm). The latter would have been used by shoemakers?
No inscriptions except for a star like stamp mark at the top of the inner slider.