1923 is a common date for silver dollars so any damage would make it only worth its metal content, about $10 or so as of 03/2009
With a hole drilled in it, about 10 bucks just for the silver in it.
It probably means that the dollar was on a neck chain at some time.
The hole destroys any collector's value that the coin may have had. It's still worth about $12-15 for its silver content, however (as of 06.2010)
No collection value but is has a scrap silver value of about 10 bucks.
Hell's Hole - 1923 was released on: USA: 23 September 1923 France: 5 December 1924
The hole was used to tie a string in order to recover the coin once the coin was used in a vending machine .
No British coin is minted with a hole in the middle. You may have a privately minted coin, token or medallion. A little more detail would be helpful.
I really hate to give you the bad news but silver dollar you have, if it were in near perfect condition would be worth as much as $500,000. A 1794 flowing hair dollar is valued at over $2,000,000. The hole drilled in yours makes it almost worthless.
It is a Japanese Coin - 50 Yen
It doesn't have a collectible value. However, depending on the size of the hole it may still be worth up to about $20 for it's silver content.