So Andy ,Your not sure if its real or fake ? I know I never seen that mark before. But that does not mean anything. It could be very rare or a made up piece. Who knows. What does anyone else think. ?No way. Price is not a criterium, my coleague from here buyed a Elite Diamant 39,even matching but sharpened, reblued for 1000USD but it doesnt mean it was good deal. Real price would be 300/400 for sawbacked S98/05nA plus staff trodell with all the parts. the significance of marking on right ricasso remains unknown. But You could be lucky for good deal.