Manhattan Pocket - Series I (Page 1)
Characteristics of the Series I Manhattan Pocket pistol include:

post-style front sight
small trigger guard
small grips
two-line New York Address
-- serial numbered 1 - 1050 approximately
The Series I Manhattan Pocket pistol has a 5-shot cylinder, a
brass post shaped front sight, a two line New York address on the
top of the barrel, no patent date on the frame, and a small trigger
guard and small grips. Serial numbers 1 to 1050, approximately.