2003 One Ounce Silver $1 Colour Golden Pipeline

Obverse:	Queen Elizabeth II - Design by Ian Rank-Broadley. Legend: ELIZABETH. II. AUSTRALIA 2003 . 1 DOLLAR .
Reverse:	C Y O'Conner within 'locking bar' pipeline seal - Design by ???. Legend: 1903 - 2003 GOLGEN PIPELINE 100TH ANNIVERSARY
Edge:	Reeded - continuous mill - 250 Serrations.
Weight:	31.635 grams.
Size:	40.60 mm (diameter) 4.00 mm (thickness).
Composition:	.999 Fine Silver.
Silver Content:	1.00 oz.
Mintage:	Perth - 5,000
Mintmarks:	P on reverse.

The reverse design on this coin depicts the image of C Y O'Conner within the shape of a 'locking bar', a revolutionary technique used to seal pipeline joins without using rivels. In the background are signatures of some of the VIP's who attended the opening ceremony of Western Australia's Golden Pipeline.

The region around Kalgoorlie was often short of water, a vital resource to the gold mining industry. The Golden Pipeline was the nickname given to the Goldfields Water Supply Scheme, a 560 kilometre pipeline between Perth and Kalgoorlie supplying the precious liquid.

Construction commenced in 1898 under the supervision of Charles Yelverton O'Conner, Chief Engineer of the Public Works Department. The project was completed in late 1902 and was officially inaugurated by Sir John Forrest on 24th January, 1903.

The coin is housed, encapsulated, in a grey metal presentation box and accompanied by a certificate of authenticity.

A limited release of 100 Golden Pipeline Framed Photographic Prints, featuring a panoramic print by world-renowned Australian landscape photographer Ken Duncan, a cross-section from an actual 'locking bar' and a colour proof silver coin were also released by the Perth Mint.