sammler.com, a major German collectibles site, quotes retail prices at around €2 for a coin with slight wear, twice that for an uncirculated one. If the condition is less, it's only worth its face value at the time Germany switched to the euro in 2002 - about 25 cents (either US or EU)
50 pf coins were relatively uncommon in circulation but aren't considered to be rare. In average circulated condition they're only worth a dollar or so.
If your coin is in better condition, check between the word "pfennig" and the denomination for the mint mark. sammler.com, a major German collectibles site, lists the following approximate retail values as of 03/2010:
"D" mint mark (München [Munich]):
Almost no wear - US$5.50
Uncirculated - US$16.60
"F" (Stuttgart):
Almost no wear - $13.80
Uncirculated - $27.60
"G" (Karlsruhe):
Almost no wear - $5.50
Uncirculated - $16.60
"J" (Hamburg):
Almost no wear - $13.80
Uncirculated - $48.30
This was an ordinary circulation coin until 2002 when Germany switched to the euro.
In spite of relatively low mintages, in average condition most 50-pf coins are worth only face value (about a quarter) or slightly more. In almost-uncirculated condition a 1970 50-pf coin might have a retail value of around US$3.00.
Many of the coins are valued at a price close to $2 each. The exact price will depend upon the condition that the coin is in.
Germany didn't mint any 50 pf. coins in 1960. Please check the coin again and post a new question. Also include the mint mark letter, located just below the "50" denomination.
The value of a 1961 50 Groschen coin can vary depending on its condition and rarity. In general, it may be worth around $1 to $5 USD for a circulated coin, but it could be higher for a coin in excellent condition or with unique features. It is recommended to have the coin appraised by a professional coin dealer or numismatist to get an accurate valuation.
Please check your coin again and post a new, separate question with its date and whether the "50" refers to groschen or schilling.
The value of a 1930 Oster Reich groschen coin can vary depending on its condition, rarity, and demand from collectors. Generally, these coins can be worth anywhere from a few dollars to around $50 or more. It's best to have the coin appraised by a professional to get an accurate value.
It's still worth 50 cents, the dates stamped into the coin adds nothing to the value.
50.00
I have one with a "50 Groschen", a flower going through the "0", on the obverse, and a shield on the reverse with the words "Republik Österreich" going around.
50 cents
There was no such coin in Britain. The 50 New Pence coin was introduced in 1969.
Such a coin does not exist. The British 50 Pence coin was first issued in 1969.
This coin is valued around $200.
50 centimes
Spend it.