FID DEF is short for Fidei Defensor (Defender of the faith)
IND IMP is short for Indiae Imperator (Emperor of India)
It's a rather archaic way to say 45. Think of it as five plus forty. This construction is used in the English nursery rhyme, "Sing a Song of Sixpence": Sing a song of sixpence, A pocket full of rye. Four and twenty blackbirds Baked in a pie. That is, there were 24 blackbirds baked in the pie.
A "Tanner" is a British colloquial term for a Sixpence. A "Halfcrown" is Two Shillings and Sixpence. There are five Sixpences (Tanners) in a Halfcrown.
$1.50
GRI (not "GRJ") on the reverse of the 1937 to 1946 British Sixpence is an abbreviation for George Rex Imperator.
A Halfcrown is the eqivalent of Two Shillings and Sixpence. A Crown was Five Shillings.
British silver coins minted in 1894 included the Crown (Five Shillings), Halfcrown (Two Shillings and Sixpence), Florin (Two Shillings), Shilling, Sixpence and Threepence.
The British Sixpence was known as a "Tanner". The Australian Sixpence was known as a "Zack".
Not knowing the exact context of the phrase, it probably means that somebody can bowl or pitch a ball so accurately, that he hit a Sixpence with the ball (at some distance).
It will probably say "sixpence" on it.... just guessing...
Collin Sixpence was born in 1974.
Half a Sixpence was created in 1963.
The word sixpence does not rhyme with any other words. Sing a Song of Sixpence is an English nursery rhyme.