7 mm made by Lefaucheux, sold by Firmin

The revolver, 7 mm self-cocking, has been made by Eugène Lefaucheux around september/ oktober 1861 but put in a box and sold by Firmin, his real name was Jean Firmin Gaymu (1823-1883) successeur of Alphonse Caron …

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LF 15010 en 7 mm, un Lefaucheux dans un coffret commercialisé par Firmin. – Lefaucheux père et fils (wordpress.com)


What’s the headstamp on the cartridges?

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7 or a G nothing else