Help identifying Husqvarna 42 Special tag

[Agrarian]

I saw this tag on a Husqvarna 42 special black top anniversary edition:


I understand that it is a 1989 made in the 14th week and is #24 off the line that week. What does the "H" and the "F" represent?

 

[SawTroll]

Your dating is correct, but those letters don't tell me anything on a 42 - but then I am no expert on that model.