The photograph of the OSBORNS hammer is being used in a New Zealand book, all about tradesman tools! Very clean and in great shape. I believe this is a tack hammer for upholstery work.
There is a makers mark on the head of the hammer that reads; OSBORNS The Osborns family started making industrial hand tools in 1826 and is still making tools to this day. Manufacturing site is Harrison, NJ, USA. This piece measures; 5 3/4 inches wide 11 inches tall