ML1d kWh meter Landis&Gyr

This is a two rate three phase kWh meter from Landis & Gyr.
Made in Waalwijk , The Netherlands in 1964. (see map pointer)
Rated at 10 (20) Ampères
3 x 380 / 220 Volts
50 Hertz
Constant 240 rev / kWh