It is made from vitreous enamel fused onto sheet steel.  Heavy gauge - unlike modern versions this one can't be bent easily.  Very durable.  Made in 1980s.

10cm high 15cm wide.

This is the real thing from real France.  Not a copy, not made yesterday.  Abandoned stock from Arras.

All numbers accurately described - I do not try and mislead customers by applying euphemisms such as "authentic" or "traditional" or "original" or "vintage" or "style" to pass off cheap repro items as the real thing.

Australia/NZ/USA/Canada, rest of world shipping free of charge.

Please see my other listings if you like French signs and numbers.