Alot probs. depends on how gd the condition is. x
Up to 500 USD
50-250 usd
Basically impossible to value with no other information.
It was made in 1919. It should say "acier special" on the barrel. If not, then please describe the barrel address.
A shotgun made in Belgium
You need to give more information. I assume it is a shotgun, but "Acier Special" just means it was made with "special steel" and we would need at least a model number to start looking for the manufacture date.
50-500usd
Fond acier indoxyable is French for substantive stainless steel.
Haven't seen that marking. Choke markings on Browning shotguns are coded by a series of asterisks and dashes. They also had a marking called 'ACIER SPECIAL' which simply means special steel, indicating the gun was suitable for smokeless powder.
steel
A fond acier is a vintage watch that has a stainless steel back. The price of a fond acier watch varies by condition and values range from $100.00 - $1100.00.