Just came across this air-pistol and it appears as new-in-box. It was priced $275 and was just reduced to $225.

I'll be able to test it before purchase and it may not have been fired for decades,
and need cleaning, lubrication, seals, whatever , , ,

I know nothing about this pistol, it's performance, accuracy, quality - Nothing!

Any advice? - Any information whatever, would be appreciated,

- Thanks!

I did a quick search and the 815 might be a re-branded Diana 5 which would make it easier to find parts, if it is true...
$225 sounds a bit steep for a vintage pistol that would likely need seals.

My pistols are Benjamin springer and co2, Sheridan pump and a Walther springer and although they are accurate My rifles get a lot more use.

i also have an old hy score mod. 815 mine is in .22cal. am sure it needs new seals if anyone knows where this can be done please let me know. if anyone is interested in buying make an offer can send pics.

Ed