What Have We Got Here?

I have recently found a 50 cent Federation coin (WA) that shows nice "doubling" on the Obverse and Reverse.

I have attached an image below.
As for the 2001 Federation coin that I have shown earlier, the doubling is over particular parts of the design only .

Squire

I'd guess it's due to the fact they minted 43.1m, double (or more) of most previous years. I'd say the dies were used until they were virtually worn out.

RAD change... (really throwing out the "welcomes" this week !.

I must admit, since joining Coin Community in March of this year I have learned a lot. I now have a comprehensive list of coin varieties and errors to look for. Far more than I ever could have gained from McDonald or other coin books. Or from randomly browsing the Internet.

"Show and tell" is also fun and very informative.
I find it inspiring when other members turn up interesting coins in their change and post pictures of these .

Thanks to nancyc for the information re. coin mintage numbers . What source do you use for these numbers ?. Do you find McDonald's figures reliable ?.
It would be interesting to see if there is a relation between coin doubling and mintage numbers.

Squire