There is no documentary evidence I can find of a 1938 Australian Crown (Five Shillings) with a "double rim" fault.
The 1938 Australian Crown is a sought after collectible coin and only about 101,000 were minted. Many have been melted down for the silver.
If the coin and/or the fault is genuine, a double rim fault would certainly increase its value.
A reputable coin dealer will be able to verify the coin and give a valuation.
The "double bar" refers to two lines appearing to stick out horizontally from the back of the emus head. They are actually a part of the reed design. The fault is most pronounced on the 1979 and 1980 50 cent coins and to a lesser degree on the 1966 (round) coin. It was a weak spot on the dies and caused early fractures in the coins. The offending part of the design was subsequently ground out of the dies and is not visible in later coins. An Australian 1979 50 cent coin (Double Bar fault), uncirculated and in absolute mint condition could fetch up to $12 AUD. An Australian 1979 50 cent coin (Double Bar fault)(Proof), uncirculated and in absolute mint condition could fetch up to $100 AUD. An Australian 1980 50 cent coin (Double Bar fault), circulated but still in good condition, might fetch anything up to $4 AUD. A reputable coin dealer will be able to give a more accurate valuation.
You take them to an Australain vet? :-)
A double fault in tennis is two consecutive serving faults that result in the loss of a point. The term double fault has been in use since 1909.
It is called double-fault when you miss both of your serves. You lose a point then.
Double Fault - 2012 was released on: USA: 15 March 2012
A player can double fault in tennis. A double fault occurs when a player does not successfully place the ball in the opposing square on a serve two consecutive times.
A crack in the indo australian plate below malaysia
no
Nope, Australia sits on the Australian-Indian plate. The nearest plate boundary or fault line is off the coast of East Timor and Indonesia.
Dave's World - 1993 Double Fault 3-22 was released on: USA: 10 April 1996
Necessary Roughness - 2011 Double Fault 2-10 is rated/received certificates of: Netherlands:6
Fault tolerance.