Old Hydrometer
Hydrometer - Old alcoholometer measuring device.
Alcoholometer from early XX century in perfect condition - Extracto - œnomètre Dujardin.
Reference: A13 / Unique Piece
An Otis King Cylindrical slide rule, in perfect condition.
Beautiful crafted, it's very hard to get!
Dimensions (opened): 26 cm x 2,5 cm
Weight: 280 g