That's a nice rifle you got there. It started as a 1651 and had a (quality) stock swap somewhere in it's life. The claw mount and the scope are of very good quality.
Well, about the Fairfox, it does not really belongs to this thread. It is based on the 1900, but with some modifications over the original design. It was made by EBO (Elliniki Viomichania Oplon - the Greek Defense Industry) from 1982 to end of the '80s. The action (and the stock, too) is the basis of the Greece's own sniper rifle, the Kefefs.
About 10 000 rifles were exported, mostly to Scandinavia (the reason why I give that explanation here), under two chamberings, 6.5X55 and .30-06. There were two names for this rifle; Fairfox 2000 and Classic 2000.
It was based on the 1900 but uses an adapted trigger, different bolt head (3 lugs un "T" shape, 50 Deg. lift throw vs 2 opposed dovetails for the 1900) and an all steel bottom metal, with different bolt pattern. It also uses a Brewer type recoil lug (a.k.a. washer type) instead the integral one used on the 1900.
These are nice rifles, though, capable of superb accuracy.