Could you post a new question with more concise statements? Are you referring to Elizabeth I or the current queen, Elizabeth II (Windsor)? And are you asking if she personally struck the coins (LOL!) or whether her portrait appears on the coins? Thanks!
If you do have these coins and notes, they are very poor forgeries. Queen Elizabeth I died in 1603 and Queen Elizabeth II was born in 1926.
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.
If it is uncirculated and in mint condition, or a cased "Proof" coin, coin collectors or maybe a coin dealer will buy it.
The Royal Mint produced 798,014,800 British Halfpennies featuring Queen Elizabeth II, for circulation from 1953 to 1967 inclusive. That figure does not include mintages for other Commonwealth countries or Proof coins.
HM Queen Elizabeth II, Queen of Canada is featured on all Canadian coins.
Queen Elizabeth II is on all modern British coins.
Queen Elizabeth I, Queen Mary, Queen Anne, Queen Victoria and Queen Elizabeth II have been on the obverse of all British coins during their respective reigns. Britannia has been on the reverse of many different British coins for hundreds of years. Queen Elizabeth the Queen Mother and Princess Diana have been on the reverse of several British coins, and Queen Victoria appeared on the reverse of the 2001 Five Pound coin.
Queen Elizabeth I, Queen Mary, Queen Anne, Queen Victoria and Queen Elizabeth II have been on the obverse of all British coins during their respective reigns. Britannia has been on the reverse of many different British coins for hundreds of years. Queen Elizabeth the Queen Mother and Princess Diana have been on the reverse of several British coins, and Queen Victoria appeared on the reverse of the 2001 Five Pound coin.
All British Third Portrait coins (1985 to 1997) depict Queen Elizabeth wearing a necklace. A year would help. The larger pre-1998 50 Pence coins were withdrawn from circulation and demonetised in 1998. So, unless they are part of a Proof or uncirculated mint set or are individual Proof or uncirculated coins and in absolute mint condition, they have little or no value.
Fiji
All British coins minted from 1985 to 1997 inclusive use the "Third Portrait" of Queen Elizabeth II which show her wearing a Diadem, earrings and a necklace. The Royal Mint produced 853,875,418 One Pound coins using the Third Portrait (with necklace).
The portrait of Queen Elizabeth II used on British and Commonwealth coins changes periodically. The Fourth Portrait by Ian Rank-Broadley has been in use since 1998 and depicts Queen Elizabeth II wearing a tiara rather than a crown. The only Queen Elizabeth II coins that show her wearing something resembling a crown, a "Diadem", were the Third Portrait coins issued from 1985 to 1997.