I was called Argent silver. Most vintage Ford parts supplies have it in spray cans. It was used on gravel deflectors, and air cleaners. It was a low-gloss paint. Any bodyshop with a mixing machine could mix it. It was used for MANY years. Using a spray can would be at best, a last resort, you know how spray cans can be. A very close match would be the Ford 1G color used on cars and trucks thru the 70s. Just make sure if you use that to add flattening additive to achieve the low gloss effect.