It is made from vitreous enamel fused onto sheet steel.  Very heavy gauge - unlike recent modern versions this one can't be bent easily.  Very durable.  Weighs a little under 200 grams or around 7 ounces.  Made in 1990s.

Genuine vintage numbers in brown are very uncommon.

4" high 6" wide.

One of a batch of samples made in France for an industrial trade warehouse in French Alps.  Perhaps they were submitting a tender, estimate or quote to supply the local mayors' offices with street numbers for them to issue?  Maybe the councils went for other suppliers, colours or materials.  These would have been quite expensive in comparison with lighter or painted versions.

Anyway - not a copy, not made yesterday.

Please see similar trade samples listed.  A great opportunity to obtain extremely unusual examples.

Around four thousand house numbers in stock at the last count - large, small, old, high, low, enamel, cast metal, bell metal, convex, flat, Danish, French, Australian, Japanese, German, Belgian, UK.  Please let me know if this is not the number or style you require. But I have few numbers higher than #600.

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.

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