Ford Magnum 500 wheel date codes & other Stamped digits

[tan top]

 
anyone know ford stuff !!
i'm not defecting to  Ford,
quick question guys , any help info etc !
fords  magnum 500 wheel , on the back side of the wheel on the rim , as well as stamped ford  there are numbers & letters , think date code also a two other digits stamped  near the lug nut holes , thought sure i read / heard somewhere  the date ,  plant , car model can be decoded from all these stampings, they currently have tires on so can only see the back side .  with out measuring think they 14x6  with a 3 -1/2 inch back space maybe a little less any ideas if info like this actually exists or have i  imagined it  
any ideas Guys would be greatly appreciated
 


posted here because its not mopar / charger ....
mods feel free to move if posted in wrong place  
 

[tan top]

forgot  to post a picture   

[6bblgt]

Motor Wheel Corp. made the wheels for Chrysler, FoMoCo & GM & are date coded in the same/similar manner

it appears from the picture

M1/6 10 4 FoMoCo MK

Motor Wheel Corp plant #1 Lansing, MI
1976
10 = October
4 = 4th of month

Monday October 4, 1976

[tan top]

Motor Wheel Corp. made the wheels for Chrysler, FoMoCo & GM & are date coded in the same/similar manner

it appears from the picture

M1/6 10 4 FoMoCo MK

Motor Wheel Corp plant #1 Lansing, MI
1976
10 = October
4 = 4th of month



Monday October 4, 1976

thank you for your help  (6bblgt) & the information,  its been greatly appreciated