Speaking of prentiss vises here is a trio of 3 generations of prentiss watchmakers vises.
The blue one I believe is the 3rd generation probably produced during ww2 as a radio service tool and or just as a portable vise to repair things in the front lines as there were many baby bullets that were sold to the government for the war effort for this purpose.
2nd generation is the red one. I believe this one was produced from the mid 1930s to 1940 or so when they started making the model like the blue one. The difference between the blue and red is the way the main screw is retained and also the swivel base pull knob on the side on the vise.
1st generation is the nickel plated one. The model was first produced in 1895 and made up until the 2nd generation which I believe is mid 1930s or there about perhaps.





Sent from my iPhone using Tapatalk
The blue one I believe is the 3rd generation probably produced during ww2 as a radio service tool and or just as a portable vise to repair things in the front lines as there were many baby bullets that were sold to the government for the war effort for this purpose.
2nd generation is the red one. I believe this one was produced from the mid 1930s to 1940 or so when they started making the model like the blue one. The difference between the blue and red is the way the main screw is retained and also the swivel base pull knob on the side on the vise.
1st generation is the nickel plated one. The model was first produced in 1895 and made up until the 2nd generation which I believe is mid 1930s or there about perhaps.





Sent from my iPhone using Tapatalk












