If its a 1908 with an R and an acceptance stamp then it means it was accepted by the army and may be collectable , no acceptance test means all comes down to condition of an old german / swiss knife in the pattern of a 1908 soldier.
Unfortunately its the ones stamped with a year and maker that will be worth more
However if its in great condition someone may want it for completion , but most collectors want named manufacturers.
Not much help sorry