cgharrington
Member
- Joined
- Jul 26, 2026
- Messages
- 21
Hello everyone,
I’m hoping the experts here can help identify this unusual vintage bench vise. I’ve spent several days disassembling it and researching patents, but I still haven’t been able to determine the manufacturer or model.
Here are the details:
What I’ve discovered so far
The rear rotating collar was completely seized. After removing the countersunk screws and carefully working it apart, I was able to begin freeing the mechanism. The rotating head is now starting to loosen after years of being stuck.
The vise appears to have two independent swivel functions:
The jaws also contain both flat jaws and V-jaws for holding round stock.
I’ve compared it to several old patents and it appears to be an early universal machinist’s vise, but I still haven’t identified the manufacturer.
My questions
I’m restoring it but have intentionally stopped before repainting until I know exactly what it is. I’d really like to preserve it correctly if it’s an uncommon model.
Thanks in advance for any help. I’ll attach plenty of photos of both the exterior and the internal mechanism, and I’m happy to provide any measurements that would help identify it.
I’m hoping the experts here can help identify this unusual vintage bench vise. I’ve spent several days disassembling it and researching patents, but I still haven’t been able to determine the manufacturer or model.
Here are the details:
- Approximately 65 lbs
- 5-inch replaceable serrated jaw faces
- 360° swivel base with locking pin
- 360° rotating jaw head (the entire jaw assembly rotates independently of the base)
- Long Acme screw with approximately 16–18 inches of travel
- Large cylindrical guide housing
- Removable hardened jaw inserts
- Original paint appears to have been green, with an older repaint in red
- Casting marks found so far:
- 873
- A separate C (or stretched letter that resembles a C)
- No visible manufacturer name or badge remains.
What I’ve discovered so far
The rear rotating collar was completely seized. After removing the countersunk screws and carefully working it apart, I was able to begin freeing the mechanism. The rotating head is now starting to loosen after years of being stuck.
The vise appears to have two independent swivel functions:
- Swivel base (360°)
- Rotating jaw head (360°)
The jaws also contain both flat jaws and V-jaws for holding round stock.
I’ve compared it to several old patents and it appears to be an early universal machinist’s vise, but I still haven’t identified the manufacturer.
My questions
- Does anyone recognize this design?
- Is it Diamond, Prentiss, Parker, Reed, Yost, Columbian, Palmgren, or another manufacturer?
- Does anyone have an old catalog showing this exact vise?
- Does anyone know approximately what years it was produced?
- Does anyone know how the rotating head locking mechanism was originally designed to work?
I’m restoring it but have intentionally stopped before repainting until I know exactly what it is. I’d really like to preserve it correctly if it’s an uncommon model.
Thanks in advance for any help. I’ll attach plenty of photos of both the exterior and the internal mechanism, and I’m happy to provide any measurements that would help identify it.
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