Rivets on Holden ID plates

[shagger]

Hi, just trying to work out what type of factory rivets should be used on a hq. The ones I'm looking at are more of a aluminium blob rather than a rivet. I thought this style rivet was for earlier Holden's, or is it more to do with the factory where the car was produced. Thanks

[Absinth]

HQ had the earlier style rivets with a blob of putty in the hollow section, HJ onwards were pop rivets.

[HK1837]

I think some very early HJ's had the early rivets too, pretty uncommon though.

[shagger]

Thanks guys, just wanted to make sure theses plates haven't been missed with.