one Batch of 3 units Adaptor / Convertor
Manuf: Hottinger Baldwin Messtechnik ( HBM )
G. Nr. 415.03
with two threaded connectors --- male with 5 flat PINS -----female with 5 flat bushings
we do not know the exact purpose of the instruments, but we suppose Adaptors / Convertors for Pressure Transducers etc.
some Buyers will know these and better than we
adaptors are in used , excellent cosmetic condition and should be functional, out of tested stocks from GERMAN GOV LAB