50 Cents - Elizabeth II 3rd Portrait - Masterpieces in Silver; Rams Head Proof

Features

Issuer	Australia
Queen	Elizabeth II (1952-2022)
Type	Non-circulating coins
Year	1991
Value	50 Cents 0.50 AUD = USD 0.36
Currency	Dollar (1966-date)
Composition	Silver (.925)
Weight	18.24 g
Diameter	31.51 mm
Thickness	3 mm
Shape	Dodecagonal (12-sided)
Technique	Milled
Orientation	Medal alignment ↑↑
Issued	1991
Number	N# 160459
References	KM# 139a Standard Catalog of World Coins (86 volumes).

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Commemorative issue

25 Years Decimal Currency

Series: Masterpieces in Silver

Obverse

3rd portrait of Queen Elizabeth II facing right wearing the King George IV State Diadem.

Script: Latin

Lettering:
ELIZABETH II
AUSTRALIA 1991
RDM

Designer: Raphael David Maklouf

Reverse

Ram's Head with lettering.

Script: Latin

Lettering:
25th ANNIVERSARY OF DECIMAL CURRENCY
FIFTY CENTS

Designers: Horst Hahne, George Kruger Gray

Edge

12 Sided Smooth

Mint

Royal Australian Mint, Canberra, Australia (1965-date)

Comments

Released by the RAM as part of the 1991 "Masterpieces in Silver" eight coin set, this 50 cent sterling silver proof coin commemorates the 25th anniversary of the introduction of Decimal Currency. This was the first complete set of Australian circulating coins released in sterling silver and the first sterling silver releases of Australian one, two, five, ten and twenty cent coins. 1991 was also the last year of one and two cent circulating coin production in Australia.

The reverse of this commemorative coin was designed by RAM master sculptor Horst Hahne using the Ram's Head from the Australian shilling which was minted from 1938 to 1963. The original designer of the Ram's Head element of this reverse was George Kruger Gray.

A copper-nickel version of the coin was released into circulation by the RAM.

Present in sets

1991 - Australia - Masterpieces in Silver (25th Anniversary Decimal Currency)

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Date			Mintage		VG	F	VF	XF	AU	UNC
Undetermined
1991			25 000							$ 51		Proof - Masterpieces in Silver Set

Values in the table above are expressed in USD. They are based on evaluations by Numista users and sales realized on Internet platforms. They serve as an indication only; they are not intended to be relied upon for buying, selling or exchanging. Numista does not buy or sell coins or banknotes.

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Numista Rarity index: 71 Search tips

This index is based on the data of Numista members collections. It ranges from 0 to 100, 0 meaning a very common coin or banknote and 100 meaning a rare coin or banknote among Numista members.

Bullion value: USD 39.76 Search tips

This value is given for information purpose only. It is based on a price of silver at 2357 USD/kg. Numista does not buy or sell coins or metal.

Actual silver weight: 0.542 oz

Current silver price: 73.30 USD/oz (see silver price

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Past sales

Pictures	Sale	Date	Grade	Sold price
	Katz Auction 171 Lot 2407	10 Oct 2025	UNC	USD 19.73 (EUR 17.00) (+ buyer's premium)
© Katz Coins Notes & Supplies Corp.
	Katz Summer Evening Auction 162 Lot 1445	7 Jul 2025	UNC	USD 16.25 (EUR 14.00) (+ buyer's premium)
© Katz Coins Notes & Supplies Corp.
	Katz Auction 154 Lot 1685	12 Apr 2025	UNC	Unsold
© Katz Coins Notes & Supplies Corp.
	Katz Auction 144 Lot 2965	17 Nov 2024	UNC	USD 17.41 (EUR 15.00) (+ buyer's premium)
© Katz Coins Notes & Supplies Corp.
	Katz Auction 126 Lot 1440	18 May 2024	UNC	USD 23.21 (EUR 20.00) (+ buyer's premium)
© Katz Coins Notes & Supplies Corp.