1920 .30 cal DWM Luger?

[r010159]

Whatever was done to it looks to be well done. Assuming it is a partial refinish, is this pistol now considered a shooter instead of a collectable? I paid allot of money for it as a collectable from a reputable dealer's private collection. So this is why I had risked the purchase. I will be carefully looking for any changes in color or shading.