Altimeter, Sensitive, PZL PB-1 The thumbscrew on the end

The thumbscrew on the end of the device loosens

600+ page manual covers all that the flight crew needed to know to perform their duties

Kollsman 398-01-2702 was made for aircraft of the US Navy such as the seaplane JRF-5 Grumman Goose

part number 2550

Altimeter, Sensitive, PZL PB-1 The thumbscrew on the endThis is a Sensitive Altimeter labeled for use in aircraft of Poland's PZL Pastwowe Zakady Lotnicze (State Aviation Works). PZL is embossed on the dial of the instrument, although not readily visible in the photos. Not much is known about this altimeter, other than what might be surmised from its service label from Palma S. A. Geneva dated 1962. The bottom right mount has been modified removed for an unknown reason.