Fox CoAs - numbering?

[Psammead]

Just got a quick question regarding Twentieth Century Fox CoAs.

I have recently seen a couple of pieces come up that do not have Fox archive numbers on the props themselves despite having numbered CoAs yet the pieces I have with CoAs from Fox are numbered on the item as well as the CoA. Has Fox always numbered both prop and CoA or has their practice changed over time?

Thanks

 

[elwood49]

I have a Minority Report precrime helmet that has a Fox COA with a number, but no numbering on the prop itself. I obtained the prop from a good source so the numbering is not there unless someone wiped it off.

 

[Psammead]

Okay, thank you. Maybe this was only done on certain items.

 

[EvilRocketeer]

prop and certificate didnt have a number on them, and it came from a legitimate source