The reverse design on this silver one dollar 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.