The Royal Mint did not produce any Sixpences from 1752 to 1756 inclusive.
The Sixpence was not introduced into the currency until about 1550.
Probably nothing. Modified coins have no collector value.
A Sixpence was a small predecimal British coin. Half a Sixpence was a Threepence, an even smaller predecimal British coin.
All British 1935 Sixpences were minted at the Royal Mint London. There are no "D" Sixpences.
A British 1700 Sixpence, circulated but still in good condition, might fetch anything up to £1,350 GBP. A reputable coin dealer will be able to give a more accurate valuation.
A Halfcrown is the eqivalent of Two Shillings and Sixpence. A Crown was Five Shillings.
The British Sixpence was known as a "Tanner". The Australian Sixpence was known as a "Zack".
Good luck if you have one, but the last British Sixpence was minted in 1967.
GRI (not "GRJ") on the reverse of the 1937 to 1946 British Sixpence is an abbreviation for George Rex Imperator.
A Sixpence was a small silver coin used in many countries of the British Empire that was the equivalent in value to 6 pennies, hence the name. Sixpence is also how you would refer to the combined value of 6 pennies. If you had 6 pennies, or 3 pennies and a Threepence in your pocket, you could say that you had sixpence in your pocket.
A British Sixpence in 1805 has the purchasing power of about £1.40 GBP today.
Such a coin does not exist. Canada has not used the British sterling currency system since the mid-19th century.