Riddle me this....

Thanks for a clue to a guy over on B-bodiesonly.....

REAL 1971 MUSTANG FORD FACTORY INSTALL HURST 4SP SHIFTER #3138 #110231C BOSS 429 | eBay

1972 1973 MUSTANG COUGAR ORIG HURST 4SP SHIFTER 72 73 FACTORY INSTALLED MACH 1 | eBay