Casting numbers on shift linkage rods?

I´m about to try to locate a set of original shift linkage rods for my HEH BX Toploader build date K22, but before doing so I wonder if they came with casting numbers and what numbers in that case? Any help in this matter would be much appreciated.

Thanks, Tony

Thanks guys, you were right. Located and purchased a complete set of original rods and levers yesterday. I can see numbers on the levers (not the rods) but need to have them blastered to read them fully.

Regards, Tony