DWIGHT PATTERN

Photo courtesy Bob Berry

Double Threaded (2X normal pitch)

Photo courtesy Bob Berry

C.N.R.

Photo courtesy Bob Berry

Horizontal Frederick H. Withycombe patent

Photo courtesy Bob Berry

No markings (whittle mold)

Photo courtesy Bob Berry

No markings (whittle mold)

Photo courtesy Bob Berry

CANADIAN PACIFIC RY CO

Photo courtesy Bob Berry

Horiz & Vertical Frederick H. Withycombe patent

Photo courtesy Bob Berry

GREAT NORTH WESTERN

Photo courtesy Bob Berry

GNW (Great North Western)

Photo courtesy Bob Berry

MONTREAL TELEGRAPH CO

Photo courtesy Bob Berry

STANDARD

Photo courtesy Bob Berry

G.N.W. DWIGHT // PATTERN

Photo courtesy Bob Berry