It depends on its date and design. Standard 5 DM coins dated 1975 through 1996 and with the number 5 inside a squared-off oval are only worth a premium in uncirculated condition. They were in common circulation until Germany switched to the euro in 2002; at that time they had an exchange value of about US $2.50
If your coin has a different date, different design, or is made of silver it could be worth more. In that case please post a new question with more details.
. A 5 Deutsche Mark coin is worth $3.27 USD as of 4/24/12.
The Deutsche mark was worth $1.65 US dollars in 1992. 10 Deutsche marks would have been $16.50 in the United States.
Anscluss.
In 1948 all previous forms of the Deutsche Mark including the Zwanzig Deutsche mark merged into one common conversion rate. In 2002 the Deutsche Mark was considered null and void of value and was replaced by the euro.
$100 to $265,000 depending upon the condition and mint mark of the coin.
. A 5 Deutsche Mark coin is worth $3.27 USD as of 4/24/12.
1 DM (deutsche Mark) = ca. 0.48 € (Euro)
The Deutsche mark was worth $1.65 US dollars in 1992. 10 Deutsche marks would have been $16.50 in the United States.
Anscluss.
it worth around £15/£150 all depends on the grade
Not much, the coin you're describing is a 2 Mark coin, of which millions were in circulation. Unless it is in "mint uncirculated" condition, its value is purely as a curiosity, since the Deutsche Mark was replaced by the Euro.
The date and mint mark are on the the edge of the coin
five dollars
The mint mark by itself isn't worth much. It has to be on a coin. If you do have a 2001 coin with a D mint mark, it's far too new to have any special value unless it's a high-quality uncirculated coin.
The mark has been not used since Germany adopted the euro in 2002; at the time of change it was worth about 50cents. Deutschmarks are no longer legal tender in Germany.
A 1970 paper Hundert Deutsche Mark note is no longer legal tender and its value would depend on its condition and any potential collector interest. Generally, it might be worth around $5 to $10 as a collectible item.
The Deutsche Mark is no longer in use, having been replaced in 2002 by the Euro. However, the Deutsche Bundesbank (the central bank of Germany) will exchange them (except for the 1948 50 Deutsche Mark bill and the 1951 2 Deutsche Mark coin, both of which were demonetized about 50 years ago) for Euros at a rate of 0.51129 Euros per Deutsche Mark. This equates to 40.90 Euros. As of March 5, 2009, this is the equivalent of 36.41 British Pounds. More information on exchanging Deutsche Marks can be found at: http://www.bundesbank.de/bargeld/bargeld_faq_banknotendm.en.php