3 1/2 jaw width with self adjusting jaw feature or stationary jaw when locked in with the plug for normal operation. 360 degree swivel base with spring loaded release pin. Pre-1911 age estimate based on fixed jaw faces. Vise is marked in top behind swivel jaw, "PRENTISS NY" (pic #5) and has a "B" mark on swivel pin housing (pic#10, best I could get).
"Unmarked" model refers to in-house Prentiss production without logos on the side surfaces of body. The company did this to allow for distribution of their vises through third parties without more obvious branding.
Dimensions - 15" vise body length in closed position, 7" tall and 9 3/4 handle length - weighs in at 32 pounds. Very functional vise for a variety of work. Overall good to very good used condition - inspected after being acquired from recent estate of home mechanic.
Inspection didn't include disassembly so limited to items visible in assembled condition. Vise had been in place at this indoor location for 30+ years and was well maintained.Body has been painted at least once with heavy black enamel and I believe I saw tiny traces of light green color that may be original. Jaw faces in good condition, worn evenly with no chinks, chips or holes. Top of jaws have some grind marks, but overall good condition. Swivel base works as expected with tight spring action.
Adjustable, swivel jaw feature works very smooth - the pin isn't original but functions exactly as needed, looks like a (very) large diameter, heavy wood screw. Top rear of dynamic jaw/slide has two hairline cracks - see pictures #11 and 12. One stops within the metal approximately 1" length, the second runs roughly parallel with front to back line and extends napprox 2 1/2" inwards.
Not uncommon with Prentiss slides and no evidence of past repair that I can identify. General appearance of this area appears untouched. The jaw still has a clear ring when struck lightly for tone. Randy, I tried contacting you through your company website, if you're still out there - you need this vise to keep the big brother happy!
Thank you for visiting and don't wait too long on this great vintage Prentiss vise! The item "VTG PRENTISS Vise No 19 Swivel Base Self-Adjusting 3 1/2 Jaws Pre-1911 Unmarked" is in sale since Monday, September 14, 2020. This item is in the category "Collectibles\Tools, Hardware & Locks\Tools\Carpentry, Woodworking\Vises, Clamps". The seller is "pattack421" and is located in Macedonia, Ohio. This item can be shipped to United States.