Recording current meter with box, designed by Jonas Ekman Fjeldstad

This device was designed in 1949 by the Norwegian oceanographer Jonas Ekman Fjeldstad. It enabled a series of readings of the velocity and direction of currents to be taken. The meter incorporated a metallic tape, onto which the number of counted propeller revolutions, and the compass direction of the alignment of the instrument, was stamped each time that a messenger weight was released down the line to which the device was attached.

This device was designed in 1949 by the Norwegian oceanographer Jonas Ekman Fjeldstad. It enabled a series of readings of the velocity and direction of currents to be taken. The meter incorporated a metallic tape, onto which the number of counted propeller revolutions, and the compass direction of the alignment of the instrument, was stamped each time that a messenger weight was released down the line to which the device was attached.

This device was designed in 1949 by the Norwegian oceanographer Jonas Ekman Fjeldstad. It enabled a series of readings of the velocity and direction of currents to be taken. The meter incorporated a metallic tape, onto which the number of counted propeller revolutions, and the compass direction of the alignment of the instrument, was stamped each time that a messenger weight was released down the line to which the device was attached.

This device was designed in 1949 by the Norwegian oceanographer Jonas Ekman Fjeldstad. It enabled a series of readings of the velocity and direction of currents to be taken. The meter incorporated a metallic tape, onto which the number of counted propeller revolutions, and the compass direction of the alignment of the instrument, was stamped each time that a messenger weight was released down the line to which the device was attached.

This device was designed in 1949 by the Norwegian oceanographer Jonas Ekman Fjeldstad. It enabled a series of readings of the velocity and direction of currents to be taken. The meter incorporated a metallic tape, onto which the number of counted propeller revolutions, and the compass direction of the alignment of the instrument, was stamped each time that a messenger weight was released down the line to which the device was attached.

This device was designed in 1949 by the Norwegian oceanographer Jonas Ekman Fjeldstad. It enabled a series of readings of the velocity and direction of currents to be taken. The meter incorporated a metallic tape, onto which the number of counted propeller revolutions, and the compass direction of the alignment of the instrument, was stamped each time that a messenger weight was released down the line to which the device was attached.

This device was designed in 1949 by the Norwegian oceanographer Jonas Ekman Fjeldstad. It enabled a series of readings of the velocity and direction of currents to be taken. The meter incorporated a metallic tape, onto which the number of counted propeller revolutions, and the compass direction of the alignment of the instrument, was stamped each time that a messenger weight was released down the line to which the device was attached.

This device was designed in 1949 by the Norwegian oceanographer Jonas Ekman Fjeldstad. It enabled a series of readings of the velocity and direction of currents to be taken. The meter incorporated a metallic tape, onto which the number of counted propeller revolutions, and the compass direction of the alignment of the instrument, was stamped each time that a messenger weight was released down the line to which the device was attached.

This device was designed in 1949 by the Norwegian oceanographer Jonas Ekman Fjeldstad. It enabled a series of readings of the velocity and direction of currents to be taken. The meter incorporated a metallic tape, onto which the number of counted propeller revolutions, and the compass direction of the alignment of the instrument, was stamped each time that a messenger weight was released down the line to which the device was attached.