More information is needed. Until 1918, each state in Germany minted its own high-value coins; their modern collectible values vary widely.
Please look for the state's name and post a new, separate question with that information. The following states minted 20-mark gold pieces in 1906:
Baden
Bremen
Hessen
Preußen (Prussia)
Württemberg
All of the previous answers are NOT relevant. 20 German marks is not 20 dollars, and actually, regardless of the value of gold, 20 euros (German marks) will buy about 27 US dollars. The value of your coin in question is based on 1) the daily spot price of gold and the percent purity of the coin and 2) the date and confition (grade) of the coin which may give it greater value as a collectible.
What ever some is will to pay for it.
Not enough information. Please post a new question with the coin's denomination.
Germany
About $240 USD
50.00
Gold bullion is based on the going market for the metal and is usually purchased in bars with a troy ounce weight of about 400. The 1893 Deutsches Reich 20-mark coin weighs only about 8 grams, so it would not have the same value as a bullion brick, but a coin in good shape can be worth over $200.
A 10 pfennig is a coin, not a note. The value of a 1917 10 pfennig coin depends on its condition. The typical value is between 20 c and 8 US dollars.
A 1889 Deutsches Reich 20 Mark gold coin is 90% pure (10% copper). It should weigh 7,9649 g, giving it a gold content of 7,1685 g.
Yes there is 50 mark coin from 1878 with Wilhelm the 2th Deutsche Kaiser Konig V.Preussen on it .
Underneath the Eagle on the back of the coin one to the left and one on the right of the tail
value of 1913 one cent uk coin
You are asking about a One Mark coin from the German Empire (KM#7). It is about the size of a US quarter, weighs 5.5 grams, and is 90% silver, giving it an ASW (Actual Silver Weight) of 0.1606 troy ounces. 6,155,000 such coins were produced at the Stuttgart mint (mintmark "F") in 1874, making amonst the most common of the "Deutsches Reich" (German for "German Empire") 1 Mark coins. With silver at a value of US$39.65 per troy ounce (as of April 7, 2011), the coin's "melt value" is US$6.37, higher than the numismatic value of the coin in "worn" condition. According to the Standard Catalog of World Coins, an example would be worth US$2.50 in Fine condition, US$8.00 in Very Fine condition, US$40.00 in Extremely Fine condition, and US$125.00 in Uncirculated condition.