Beginner to collecting - 50p question

[ConfusedFish 0]

I'm new to coin collecting and i am still learning things here and there. I recently bought a proof 50p 'new pence'. When it arrived the coin was twice as thick as a standard 50p. Is the standard 'new pence' 50p twice as thick or have I bought a piedfort coin without realising? Or are all proof coins twice the thickness?

Any information will be greatly appreciated.

[CartwheelTwopence 2]

The 50p coins before 1997 (including "New Pence" design) were larger than our current circulated coins. They are about twice as thick and are wider, too.

[CartwheelTwopence 2]

Is your coin the EEC 50p?

[ConfusedFish 0]

Thanks for that information. I appreciate it.

No my coin is not the EEC. It's a 1977 Britannia.

[azda 973]

It might be a piedfort proof

[Rob 2,996]

It might be a piedfort proof

Doubt it. They didn't do piedforts until they started striking in silver. It should be just a regular proof