GUIDE TO IDENTIFYING YOUR MANHATTAN CARTRIDGE .22 CAL REVOLVER
manhattanfirearms.com
Model: First Model Cartridge, First Variation
Caliber: .22 Caliber
Barrel Length(s): 3"
Serial Number Range: approx. 1 to 1,600
Features: 7-shot, Round frame, copy of S&W First Model
.22, brass frame, iron side plate.
Manufacturing date: around 1860 to 1861
Model: First Model Cartridge, Second Variation
Caliber: .22 Caliber
Barrel Length(s): 3"
Serial Number Range: approx. 1,600 to 4,800
Features: 7-shot, Round frame, copy of S&W First Model
.22, iron frame, brass side plate.
Manufacturing date: around 1860 to 1861
Model: First Model Cartridge, Third Variation
Caliber: .22 Caliber
Barrel Length(s): 3"
Serial Number Range: approx. 4,800 to 7,000+
Features: 7-shot, Round frame, copy of S&W First Model
.22, Iron Frame, Hammer spur curved down.
Manufacturing date: around 1860 to 1861
Model: First Model Cartridge, Fourth Variation
Caliber: .22 Caliber
Barrel Length(s): 3"
Serial Number Range: approx. 7,000+  to 9,000+
Features: 7-shot, Round frame, copy of S&W First Model
.22,  Iron Frame, Barrel latch shortened.
Manufacturing date: around 1860 to 1861
Model: Second Model Cartridge- Manhattan
Caliber: .22 Caliber
Barrel Length(s): 3"
Serial Number Range: approx. 1 to 8,000+
Features: 7-shot, Flat frame, copy of S&W Second Model
.22, Manhattan Barrel Address
Manufacturing date: around 1861 to 1862
Model: Second Model Cartridge- American Standard Tool
Caliber: .22 Caliber
Barrel Length(s): 3"
Serial Number Range: approx. 1 to 40,000
Features: 7-shot, Flat frame, copy of S&W Second Model
.22, American Standard Tool Co. Barrel Address
Manufacturing date: April 1869 to February 1873