help with these irons please

i guess my real question is how is it possible to have such a light swingweight (c8) with such a heavy head?

The lighter shaft will bring the swing weight down and I would guess that they are also half an inch short of standard which will also bring it down by a few points as well.

Hello Everyone !

Can anyone here help me Identify these clubs. One set is made by Callaway and the say Bobby Jones on them and they all have the same serial numbers 3-SW (62H2) made in the USA ( Carlsbad CA ) the label has Memphis “10” true temper. I’m just wondering If I should ABS them and game them. If any one knows the year and if they are worthy club to ABS? Much appreciated.
Bobby Jones Lable.JPG
Bobby Jones Sole.jpg
Bobby Jones face.JPG
Bobby Jones 5 Iron.JPG

I have no personal knowledge of them, but this may be a helpful link:

ironfinder.com/Individual-Ir … nes-92.htm

I would say that the short hosel is not much help if you want to bend these much flatter.