Without knowing its denomination it's impossible to know whether the coin is a collectible one or not. But in general, a normal circulation coin with that date would be very common and not really have much interest to a collector. Specifically, all old mark- and pfennig-denominated coins were taken out of circulation in 2002 when Germany adopted the euro, so literally tons of them were in storage.
Assuming you have a normal circulation coin, its exchange value in 2002 can be roughly calculated by dividing its denomination in half to get US dollars or cents. For example, a 1 mark coin was worth about half of a US dollar.
Your coin was used in Germany up till the country switched to the euro in 2002. You didn't provide a denomination, but if its value is in pfennige or is at most 5 marks, it's most likely to be an ordinary circulation coin.
If so, it's no longer spendable but its value at the time of conversion was roughly half as many US dollars or cents as its denomination in marks or pfennige; e.g. a 10 pf coin was worth about 5 cents.
If not, please post a new question with more details including its denomination.
This was an extremely common circulation coin until 2002 when Germany adopted the euro as its currency.
A circulated one has no real collector value and would probably sell for anywhere from its face value at the time of conversion, roughly 50¢, up to $1 or so.
As of 02/2010 an uncirculated specimen retails for about €3 (roughly US$4.25) if it has an F or J mint mark, while a G mint mark would bring an extra €0.50.
You are asking about a 1 Deutsche Mark coin from Germany (KM#110). The value depends on its condition - about US$0.75 in Very Fine condition, about US$1.00 in Extremely Fine condition, and about US$6.00 in Uncirculated condition. The coin was produced at four different mints - Munich ("D"), Stuttgart ("F"), Karlsruhe ("G") and Hamburg ("J") - but for this particular year there is no difference in value.
1 DM (deutsche Mark) = ca. 0.48 € (Euro)
An uncirculated Philadelphia half from 1972 retails for about $1.
The German 1 Mark coins from that era were actually made of copper-nickel, and the highest collector's value would be around $4, if it's still in uncirculated condition.
That may refer to "Deutsche Mark", the money used in Germany before they switched to the Euro.
The Deutsche Mark is a former currency of Germany that was in circulation until it was replaced by the Euro in 2002. There is no intrinsic silver value in the Deutsche Mark as it was a fiat currency, not backed by silver or any other precious metal.
The Deutsche Mark ended on January 1, 2002, when it was replaced by the euro as the official currency of Germany. The decision to adopt the euro was made as part of the European Union's plan for economic and monetary integration.
The currency of Germany before the Euro was introduced in 2002 was the Deutsche Mark, or Mark for short.
Deutsche Mark coins and bills can no longer be used in ordinary commerce, but as of 2016 the Bundesbank maintains its policy of exchanging DM bills and coins for euros without restriction. The exchange rate is the same as that established when the euro entered circulation, approximately 1 DM to €0.51
That really depends on the year the coin was minted and the condition of the coin.
That really depends on the year the coin was minted and the condition of the coin.
If your question relates to the numismatic value of a 1978 Deutsche Mark coin, it is worth less than a dollar in circulated condition, and US$1 to US$2 in uncirculated or proof condition. This is the case regardless of which mintmark (D,F,G or J) you are referring to. If your question relates to the Dollar-Deutsche Mark exchange rate in 1978, US$1.00 = DM2.00 (FYI, it was US$1.00 = DM2.32 in 1977 and US$1.00 = DM1.83 in 1979).
The value of a 1971 10 Deutsche Mark bill in mint condition can range from $5 to $10. However, factors such as rarity, condition, and demand among collectors can influence its value. It's recommended to have it appraised by a currency expert or collector to determine its exact worth.