This electric locomotive is model JNREF55, nickname is "muumin", this is side2.
JNR, Model: EF55
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EF551 to EF553
Manufactured: 1936
Purpose: Passenger, Express
Drive: 2-C-C-1
Current: DC 1500V
Output: 1350kW
Gross weight: 100.38 m.t .(measurement ton)