It is unclear why there are duplicate hammer numbers. There are several theories but nothing concrete.
____________________________________________________
Numbers #110/#110B are one of 2 duplicate numbered Needhams in this site.
#110
Lock Manufacturer = Bridesburg
Lock Date = Forward
Fenian Stamp = No
Fenian Cut = IN
“O” Lock = No
“O” Stock = No
Breech Block = End
Hammer Shield = Rounded
Wedge Crown = Oval
Wedge Pin = Rounded
Wedge Joint = Horizontal
Wedge Heel = Rounded
Rear Barrel Band = Convex screws
Stock = No Spring
Rear Sight = 58
Butt Cap = U.S.
C = Trigger Guard
#110B
Lock Manufacturer = Bridesburg
Lock Date = Rear
Fenian Stamp = IN
Fenian Cut = No
“O” Lock = No
“O” Stock = No
Breech Block = Center
Hammer Shield = Unknown
Wedge Crown = Slot
Wedge Pin = Flat
Wedge Joint = 2 vertical
Wedge Heel = Rounded
Rear Barrel Band = Convex Screws
Stock = No Spring
Rear Sight = 61/63
Butt Cap = U.S.
C = Stock
#110 has clamp screw barrel bands
____________________________________________________
Hammer #267 / #267B
#267 is a complete Needham. #267B is just a hammer
Lock Manufacturer = Mowry
Lock Date = Rear
Fenian Stamp = No
Fenian Cut = Sporterized
“O” Lock = No
“O” Stock = No
Breech Block = End
Barrel = Shortened
Hammer Shield = Unknown
Wedge Crown = Oval
Wedge Pin = Rounded
Wedge Joint = Unknown
Wedge Heel = Rounded
Rear Barrel Band = Flat
Stock = Spring
Rear Sight = 58
Butt Cap = U.S.
C = Butt Cap
Lock Manufacturer = Unknown
Lock Date = Unknown
Fenian Stamp = Unknown
Fenian Cut = Unknown
“O” Lock = Unknown
“O” Stock = Unknown
Breech Block = Unknown
Barrel = Unknown
Hammer Shield = Unknown
Wedge Crown = Unknown
Wedge Pin = Unknown
Wedge Joint = Unknown
Wedge Heel = Unknown
Rear Barrel Band = Unknown
Stock = Unknown
Rear Sight = Unknown
Butt Cap = Unknown.
C = Unknown
____________________________________________________