This is from a previous thread:
"Manhattan Arms Co was a trade name used on hammer and hammerless side by side imported by Schoverling, Daly and Gales, and also, Von Lenggerke & Detmold, both of New York city. The guns were made in Belguim by Neumann Freres and Fabrique d'Armes Fs. Dumoulin & Co., and in Germany by J.P. Sauer. The 1887 Merwin Hulbert & Co. catalog featured the hammer gun $25.65 to $37.50 and the hammerless gun for $68.00 for a 12 gauge, and $72.00 for a 10 gauge. Choice of barrels were in twist, laminated or damascus."
If those are cold rolled barrels with a longitudinal weld, then I would refrain from firing all but the lights loads in the gun.
Pete
