Obviously it is not a Luger pistol, but it does have a connection to the 1907 US Test Trials where the Luger .45 was tested against this experimantal pistol in addition to the Roth-Steyr experimental in caliber .45. This Mauser Nickel pistol was also made in limited quantities in a pocket size model in caliber 7.65 mm Browning and 9 mm (see image hereunder).
I reckon that this pistol will fetch over $90k in the auction, but the end point is unknown until the auction.
Cheers,
Albert