You do not specify the country.
There is very little possibility that the edge inscription could be "upside down" with respect to the obverse and reverse, but nothing is impossible. There is no documented occurrence of this error.
Any coin with a "genuine" minting flaw would have some value, above the usual, as a collectible coin.
Genuinely flawed coins are not necessarily known about or documented until somebody turns up with one, since they are an "accident" of the minting process, and have escaped detection during quality control at the mint therefore, a valuation cannot be anticipated.
A reputable coin dealer should be able to identify and confirm the coin as genuine and make a valuation.
Yes. The "edge" inscription should read "FAITH AND TRUTH I WILL BEAR UNTO YOU".
On an unspecified quantity of 1953 British Coronation Crowns, the "edge" inscription reads "FAITH AND TRUTH I WILL BEAR UNTO YO".
The "U" is missing from the "YOU".
Some "wag" has referred to this as the "hip hop" edge error.
There was no 1955 British Crown (Five Shillings) minted. You possibly refer to the 1953 "Coronation" Crown.
Sovereigns are made from 91.67% gold and are not plated. There were no Sovereigns minted in 1953. Queen Elizabeths Coronation commemorative coin was the 1953 Crown which is made from a cupro-nickel alloy. Modified coins have no collector value.
If it is still encased --about 19.00 singley --it depends on condition.
http://www.pickegg.com/
The Royal Mint does not issue Commemorative copper coins. The only Queen Elizabeth II commemorative coin issued in 1953 was the cupro-nickel Coronation Crown.
There was no 1946 British Crown minted.
What is the value of an Edward VIII coronation mug in case, limited edition (no. 731 out of 2000) by Minton?
A British 1707 Crown (Five Shillings)(SEXTO), circulated but still in good condition, might fetch anything from £160 to £1,800 GBP. A reputable coin dealer will be able to give a more accurate valuation. NOTE - The reverse of these coins is upside down to the obverse. This is normal.
There was no British Crown minted from 1938 to 1950 inclusive.
I have a vase with a crown on the bottom
the number 6
99