Austrian Coin Sizes

Coin Type	Coin Diameter	Ring Type Holder	Direct Fit Holder
1 Ducat	19.75mm	20mm	n/a
4 Ducat	40mm	40mm	n/a
1/10 oz. Philharmonic Gold	16mm	16mm	A16
1/4 oz. Philharmonic Gold	22mm	22mm	A22
1/2 oz. Philharmonic Gold	28mm	28mm	n/a
1 oz. Philharmonic Gold	37mm	37mm	n/a
100 Corona Gold	37mm	37mm	n/a
I oz. Philharmonic Silver	37mm	37mm	n/a