Vintage leather cased retailer volt meter by Metravo

Vintage leather cased volt meter by Metravo .I believe the inside to be bakeliet but not sure sorry . Also i think it is still working as when the two probs are connected to the oposite end of a battery the needle moves . If i change the measuring parameters the needle changes accordingly. Condition is used but not abused ,leather as well.


measurements are ca : 18 cm long x 10 cm high x 10 cm wide


sku:267022C3 retailer