BMEP Gauge- PBY/PBM-5/P-2 JRM-1 Martin Mars- Kollsman 647K-02 B-17 3in round

3in round

The K-13 Compensating Gunsight

It is clearly 'experienced' but the dial markings are clear and the glass and case are intact

See spec sheet for details

This is a front left auxiliary cockpit window installed in some G-model B-17's

BMEP Gauge- PBY/PBM-5/P-2 JRM-1 Martin Mars- Kollsman 647K-02 B-17 3in roundNormal 0 false false false MicrosoftInternetExplorer4 Offered in this listing is an authentic Engine BMEP Gauge from the late 1940's, made by Kollsman PN 647K 02. The body of the instrument has a label of the US Naval Air Station Coco Solo, Panama, (see photos, hard to discern, but I've sold 3 from this lot which are identical to this one including the label), and may have been installed aside others like it in a large multi engine piston powered