I wouldn't waste any time trying to bed that tupperware stock. There is a page with 15000 series but has no 'T' in the front of the serial number. Weatherby Serials If this is your first visit, be sure to check out the FAQ by clicking the link above. Actually you picked up a German (Sauer) Mark V made in 1971. Click for more info Posted Augby Jacob Solberg & filed under. please tell me their market value � read more TOM Weatherby This discontinued, possibly collectible model features Anschutz model 64 action and beautiful Weatherby stock with rosewood highlights. Manufactured by Nikko Arms in Japan in 1978.