Impeller current meter marked Neyrpic

1960-1970

Current meter Mk V by Ott

1980-1990

High speed impeller current meter

1960-1970

Watts helix current meter in box with accessories by Hilger & Watts Ltd

1948-1960

CID current meter (not in working order) by CID Ltd

1984

Current flow meter

1850

Valeport current meter

1970-1979

Watts Mk IV 'acoustic' current meter

1958

Nile control vertical axis current meter

1965

Helix current meter by Hilger & Watts Ltd

1960-1965

Roberts radio current meter no 117 by Kelvin and Hughes

1970-1975

Delft current meter with gimbal arrangement

1980-1985

Recording directional current meter

1950-1960