DBS is short for the Norwegian phrase 'Den Beste Sykkel' which translates to 'the best cycle'. DBS made a whole line of bikes from low to high end, much like Schwinn in the USA. Slightly OT, I have a small pocket knife with the DBS logo I received as a young toddler from some distant 'uncle' who was affiliated with the company long ago. I don't think they are still a going concern but could be wrong there.
If you want a better idea of the value of your bike take a load of pictures and post them is a new thread in the evaluations sub-forum. So much depends on condition that it's impossible to give any reasonable guess without pictures.
Last edited by Iowegian; 11-19-10 at 10:30 PM.