According to the Black Book Price Guide for World Coins 2013, It is worth $29.70 USD (ABP Fine) or the average fine is $49.45 USD.
It is a German Deutsche Mark.
There's no such coin. Germany did not take the name Bundesrepublik Deutschland (German Federal Republic) until 1950.
Money
We need more information. The words "bundesrepublik Deutschland" just mean "Federal Republic of Germany" and are not the actual value of the coin. The coin will have a number on the front, representing its value in Marks (or Pfefning).
Please post a new, separate question with the coin's denomination.
There is a website called Numista that has coin pictures. Also on eBay and so on ...
The coin you're referring to is the 50 Pfennig piece. The obverse has the number 50 printed in the centre and the words Bundesrepublik Deutschland - Pfennig around the outside. The J immediately underneath the 50 indicates where the coin was minted, in this case Hamburg. The following letters denoted the various German mints: A - Berlin D - Munich F - Stuttgart G - Karlsruhe J - Hamburg
It depends on denomination, mint mark and condition - as little as a few cents and as much as $15 or so.
The value of a 1974 5 mark Immanuel Kant coin from Bundesrepublik Deutschland depends on its condition and rarity, but it generally ranges from a few dollars to around $20 in uncirculated condition. Collectors may be willing to pay more for coins in exceptional condition or with unique attributes. It's best to consult with a coin dealer or online marketplace for a more accurate valuation.
This coin is no longer in circulation, having been replaced by euro-cent coins in 2002. At the exchange rate in effect at the time, it was worth about a nickel.
A 1976 Bundesrepublik Deutschland coin with a "2" on the bottom is likely a 2 Deutsche Mark coin. Its value can vary based on condition and demand but typically ranges from a few dollars to around 10 USD for uncirculated examples. Coins in excellent condition or with specific mint marks may fetch higher prices among collectors. Always check with a numismatic expert or a reputable coin dealer for the most accurate valuation.
About $2.50 in normal circulated condition, up to maybe $40 if almost new-looking