Well it's a British half plate camera, with a Thornton Pickard shutter and lens. To give you an idea I can get a similar camera for about £60 (75 euros) without a shutter/lens and a shutter for £15 (19 euros), lens £30 (38 euros) so around £105 (130 euros). Having said that complete cameras usually fetch more especially with a case and plate holders.
Lionel Hughes has a good idea of prices and sells similar cameras on his website. The Houghton Triple Victo he's selling is £180 / 224 euros and that should be your maximum price, you might try offering 120 -150 euros.
You'd probably need to make a different back to take wet plate holders but that shouldn't be too difficult. I've assumed from the proportions and size of shutter that it's a half plate camera - you'd need to double check, half plate is 4¼ × 6½ inches approx 11x16.5cm.
Last edited by Ian Grant; 11-07-2012 at 11:32 AM. Click to view previous post history.
Reason: add plate size