This is an old metallic warning sign "TERMINAL CABINET" in Russian. 

 Size is 240 Х 120 mm (9.4" x 4,7"in).

Old Russian soviet enamelled plate with inscription.

ENAMELED METAL PLAQUE 

IT IS ORIGINAL OLD ITEM, NOT REPLICA.

MADE IN USSR

CONDITION - USED - SEE PHOTOS (ALL PHOTOS ORIGINAL)

SHIPPING COST: 15 USD

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