Hey Folks, I am a U.S. Coin colelctor so I have no idea what this is. Look to be some sort of medal or token? It is the size of a Morgan silver dollar roughly. My coworker found this in her dads safe deposit box and asked me if I knew anything about it. Thanks in advanced for any information.
A google search tunred up some info for me. It is a commemorative 25p from GB. There were two types. silver and copper/zinc. I do not know which one this is though. I cannot find information on the weights for the various material.
I believe that it is a base metal commemorative medal for the 25th year (Silver Jubilee) of Queen Elizabeth. They sell for a few dollars I think. Someone that has the medal may know more. Edit: I found some on Ebay. Based on SOME of the asking prices there may be base metal versions and silver versions but again I do not know for sure. Here are a couple links: http://www.ebay.com/itm/1977-Queen-Elizabeth-II-Commemorative-Coin-/280566273777 http://www.ebay.com/itm/1977-Silver...=280566273777&ps=63&clkid=2826953862413614243 http://www.ebay.com/itm/1977-Great-...=280566273777&ps=63&clkid=2826981444621614334
Your item can be found all over the Internet. Different Internet listings call it a "Coin", "Medal", "Mint", and "Crown". I do not see any denomination shown on the piece so I suspect is is a "Medal".
It is in fact an actual coin. It is a 25p. They did not put the denomination or the country on it. This is the copper zinc version worth a few bucks.
Great Britain is one of the few countries that does not put the name of the country on their coins. However, they normally include a denomination. Based upon your post I looked up the coin & see that it is KM#920 which is a copper-nickel 25 Pence with mintage of 37 million valued at US$ 1.50 in UNC.
It is indeed a coin. After the British monetary system was decimalized in 1971, they replaced the British Crown with a coin of similar size and value in the new system -- the 25 Pence. These coins are legal tender in Great Britain, and are generally struck to commemorate British Royalty celebrations (e.g. 1972 was for the 25th wedding anniversary of Eliz II and Prince Philip, the 1977 issue was to celebrate Queen Elizabeth's silver Jubilee, the 1980 issue for the 80th birthday of the Queen Mother, and in 1981, the coin was issued to celebrate the marriage of Prince Charles and Lady Di). In 1990 the commemorative issues were changed to a value of 5 pounds (e.g., the 2002 coin struck commemorating the life of the Queen Mother).