The Canadian brand Tremclad is the sister brand to Rustoleum. They do sell a brown hammer tone which is very close to the original. There is also a black wrinkle paint that in the old days was used on lab equipment.

1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed

My Chevy Master 4 Door is on the Road!