If the inscription in total reads GEORGIVS II REX on the obverse, with BRITANNIA on the reverse, your description lines up with a copper coin, but there were no copper coins minted in 1757 and all Pennies prior to 1797 were a small silver coin.
You may have a privately minted coin or a medallion.
5.00
These were minted in large numbers. In ordinary circulated condition around 10p - 20p. In mint condition with full red lustre around £12 - £15.
The value of this coin, a penny from (probably) South Africa depends on its condition and date (between 1937 and 1947). By the way, "GEORGIVS VI REX IMPERATOR" means "George the Sixth, King and Emperor" in latin.
30.00
In circulated condition, your Great Britain penny is worth about 50 cents.DanUser:WorkingMan
I think mostly copper.
You are probably asking about a South African coin dated 1950. The value would depend on the specific denomination to which you are referring (farthing, half penny, penny, threepence, sixpence, shilling, two shilling, 2 1/2 shilling or 5 shilling) and its condition.
Between 20 cents and $3.60, depending on condition. Next time, if you include more information (the coin's approximate condition, if it is circulated or not, etc.) I can give you a more precise value.
The value depends on the condition of the coin, average values are 25 cents to $2.00 possibly more.
It is a British Penny and a US coin cut in half and stuck to each other. It has no value.
Such a coin does not exist. George V did not become king until 1910.
One is worth at least 2 cents for the copper, and possibly more depending on date and condition.