It depends very much on the coin's condition and mint mark. A very good site for German coin prices is www.sammler.com However most of it is, not unsurprisingly, in German.
The page linked below gives values of 1939 1 DM coins. To translate, ss = well worn, vz = moderately worn, unz = uncirculated. Use a conversion factor of 1€ = $1.45.
Your coin is an aluminum 3-mark piece issued by the ill-fated Weimar Republic. It should have the German words "Verfassungstag 11. August 1922" on the back, referring to the Weimar Constitution of that date.
Check the mint mark letter at the bottom rim below the date. Most of these coins are fairly common but those with a "D" mint mark are worth a premium. sammler.com, a major German collectibles site, lists the following approximate retail values as of 03/2014:
"A" mint mark (Berlin):
Slightly worn - US$0.70
Almost no wear - US$2.80
Uncirculated - US$7.00
"D" (München [Munich]):
Slightly worn - $210.00
Almost no wear - $350.00
Uncirculated - $560.00
"E" (Muldenhütte):
Slightly worn - $1.40
Almost no wear - $3.50
Uncirculated - $8.40
"F" (Stuttgart):
Slightly worn - $3.50
Almost no wear - $10.50
Uncirculated - $14.00
"G" (Karlsruhe):
Slightly worn - $1.40
Almost no wear - $3.50
Uncirculated - $8.40
"J" (Hamburg):
Slightly worn - $1.40
Almost no wear - $3.50
Uncirculated - $8.40
Needless to say if you have a "D"-mint coin you should have it evaluated by someone who is an expert in German coinage.
If the coins are from the postwar era, 3 1-DM coins from circulation are worth about $1.50 total because they were extremely common before the euro was adopted in 2002.
If the coins are older please post a new, separate question with the coins' dates.
3-mark coins were issued by several different German states. Please post a new and separate question with the state's name. It may be Baden, Brauschweig, Mecklenburg, Preußen, Sachsen-Meiningen or Sachsen-Weimar.
What's the vaule
This is a Saint-Gaudens NOT a Liberty value depends on grade condition an mint mark. The Denver mint mark (D) has the highest value of the 3 coins struck for this year. Consult a qualified dealer.
It's very common, values are 3 to 10 cents for circulated coins.
Unless the gold coins are solid gold and the silver coins are solid silver, it is probably worth less than the purchase price.
No. It's very common, values are 3 to 5 cents for average circulated coins.
Until 1918 all coins above 1 Mark were issued by the individual states, so the value will depend on the state - and of course the condition. (The larger states, like Prussia, issued huge numbers of 3 Mark coins, while small states issued far fewer, so the state is important).
A multiple of 11 can't be a prime number.
In circulated condition, the presence or lack of a mint mark does not significantly change its value. US cents with no mint mark were minted in Philadelphia, where most coins are minted; therefore, cents without mint marks often are more plentiful, and have 'less' value to collectors. In the case of the 1943 steel cent, there's little extra value between the 3 mints until you get to the high grade uncirculated coins, in which case the no-mintmark coins are worth significantly more -- twice as much as the "S" mintmarks and 5 times as much as the "D" mintmarks.
Please post new question. Do you mean Three (3) $5.00 coins?
Value is 3 to 10 cents for average circulated coins.
Most of the are worth 3 cents to 30 cents depending upon the actual date, mint mark and circulated condition of the coin. Uncirculated coins command higher values.
The dates 1940 1941 are not rare. Average value is 3 cents for circulated coins that are well worn. Uncirculated coins can be $2 to $3 dollars or more depending on grade.
This is a common date coin, value is 3 to 10 cents for circulated coins