The answer to your question is -that will require an appraisal by someone familiar with antique European firearms, and will depend on model and condition. The Jongen Brothers revolver I have seen was an unusual "reverse break" type, hinged at the top, barrel swung up at the rear of cylinder. Have found mention of Jongen in 4 patents on revolvers, believe they were active in Liege Belgium in the mid 1800s.
With an antique weapon, you will need to get a professional appraisal. I have seen weapons in an 'excellent' grading from this manufacturer, in 12 mm, offered for over $1200. But condition and rarity are key. Take it to a gun dealer that sells pre-1900 guns.
what is the value of a harrington and richardson 1895 revolver
The value of a Roskopf Wille Freres pocket watch can vary greatly depending on factors such as the model, condition, age, and rarity. It is recommended to have the watch appraised by a professional watch appraiser or consult recent sales of similar watches to get an idea of its current market value.
Garnier Freres has written: 'Les trois petits cochons'
Joseph Jongen died in 1953.
Joseph Jongen was born in 1873.
The model number of the revolver helps alot then i will tell you the value
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A U.S. revolver from the civil war can go for as much as $2000
Centre pedagogique des freres unis was created in 1988.
The cast of Faux freres - 2008 includes: Jo Prestia
What is the value of my 1955 smith & wesson 45 target master revolver?