KG is the initials of the designer of the reverse of many British and British Commonwealth/Empire coins.
His full name is (George) Kruger Gray (1880-1943).
No. No British West Africa Threepence had any silver content from 1925 onwards.
No. The round silver Threepence is too small a coin to have a milled edge.
No. A coin denomination as low as Threepence would not be minted in gold. In 1915 they were made from 92.5% silver.
1 kilogram = 1000 grams 1 gram = 0.001 kilograms
The 12 sided British Threepence issued from 1937 to 1967 inclusive was made from a nickel-brass alloy. The small silver British Threepence issued from 1920 to 1945 inclusive were made from an alloy of 50% silver, nickel and copper. Although the silver coins were circulated in Britain, they were intended for use in several of the British Colonies.
It was traditional to put silver coins into a Christmas pudding.
In Great Britain, the last Threepence coin produced for circulation was minted in 1967. A proof-only Threepence coin was also produced in 1970. Finally, small numbers (usually about 2,000 to 4,000 each year) of silver Threepence coins are produced annually (as they have been for several hundred years) as part of four-coin Maundy sets. The Threepence was initially to be withdrawn and demonetised on the introduction of decimal currency in 1971, but they remained legal tender until about 1974 or 75.
A kilogram of silver weighs more.
All British Threepence minted from 1834 to 1919 inclusive were made from sterling silver, were 16 mm in diameter and weighed 1.414 grams.
It depends on the type of threepence. A nickel-brass (multiple sided) threepence is rather common and would sell for 50p to a pound or so if circulated. A silver threepence on the other hand is 50% silver (and much smaller) and worth about a pound or two mostly for the silver if circulated.
Pictures of a specific coin are difficult to come by. Frequently you should be able to find one on eBay, but the picture is withdrawn after the coin is sold. The British 1920 Threepence changed from sterling silver to 50% silver during the course of 1920. There are no obviously apparent visual distinctions between the two types of coin. The 1920 Threepence is almost identical to the 1925 Threepence shown. See the link below.
A 1941 silver threepence is only 50% silver (assuming for a moment we are talking about British coins) and as such is really only worth a bit less than a dollar in scrap silver. 1941 isn't a rare year for British silver threepence, however, mint state examples are desirable and can bring a sizable premium over silver scrap.