Prussian Pickelhaube Spike - Legit or Repro

[rankfilm]

Hello all,

Thanks again to those who helped me solve my query about my great uncle's cap badge.

I know this is not cap badge related but can someone help with this Pickelhaube spike.

I've been informed that it is Prussian possibly pre-ww1.

Is there anyway to know if it's original or a repro and which country and era it is from?

Hope someone can help. Much appreciated.