OLD STOCK.  New old replacement stock (NORS) aftermarket unbranded vintage replacement heater control valve for Ford and Mercury vehicles 1952 - 1957. Aftermarket part number M-7031 replaces FoMoCo part B5A-18502B.   Ford / Mercury passenger cars 1952 thru 1956.  Ford Thunderbird 1955 thru 1957.   Original box / packaging is distressed with significant shelf wear, tears, fading ink, and staining (see photos).  Original part inside will have cosmetic surface oxidation to ferrous metals from age (see photos).  

Check all photos before you buy.  Verify fitment using your vintage Ford / Mercury parts catalog before you buy.