On the larger sprocket there is a stamped in the metal number...1-09 P5208. The smaller sprocket is 16 P5206. It has the adjustable timing notches for the keyway. The large sprocket is solid, doesn't have the 3 or 4 oval holes that some have. I tried to find a blown up picture on line to compare the area of the stamping but could not. I will ask my builder who owns a large Mustang shop if he has any Ford sprockets, either old or new to compare them with.
I saw this on the History Channel. Ford lost the bid to build the WW II Jeeps, but when the winning bidder , Willys, couldn't keep up with production, Uncle Sam persuaded Henry Ford to help out. Ford had already heard of the sloppy parts and assembly associated with the Willys version of the jeep and didn't want any part of the Jeeps bad publicity on his back so he ordered all parts to build the Jeep would have a Ford stamp on them, even the glass and nuts and bolts. The motor pool guys could always tell if they were working on a Ford Jeep or a Willys. The episode said that the mechanics agreed that the Ford was a better product. It seems today that Ford is not as proud of their product. Lots of their parts are built overseas, even China. I bought a Ford 306 crate engine from Ford Performance. My info said to use a #xxxx Ford starter so I ordered one. It came in a sealed Ford cardboard box. The starter was in a plastic sealed bag with Ford all over it. The starter had a stamp on it that said 'Made in China'. The starter did look good and worked great, but being a die hard 60 year old Ford man, it hurt putting a chinese starter on my built 302.