1950 D is considered to be a key date for Jefferson nickels although values have dropped in recent years. Assuming your coins are genuine (they're often counterfeited, so you'd need to have them examined by an expert) retail values as of 10/2015 range from $5 for very worn coins to $11 for those in almost-uncirculated condition.
5 cents. Only a small handful of Jefferson nickels are worth more than face value, such as the 1942-45 silver war nickels, and the elusive 1950-D.
US nickels show a picture of Thomas Jefferson's home, Monticello, but they're not minted there. At that time there were 3 active mints: Philadelphia (no mint mark), Denver ("D"), and San Francisco ("S") although 1950 nickels weren't minted at the latter. Please see the question "What is the value of a 1950 US nickel?" for more information.
Liberty head nickels were made from 1883 to 1912. Nickels from 1913 to 1938 are Indian head nickels.
Mintages of pennies, nickels and dimes in the 1940's and 1950's was quite high, so they are considered common -- with few exceptions. In circulated condition, wheat cents are worth about 2 cents each. Steel cents from 1943 are worth 5-10 cents each. Nickels will generally have little or no added value. The exceptions being the 1942-1945 silver nickels (identified by a large P, D or S above the building on the back) that are worth about 20 cents, and the 1950-D nickel which is worth a couple dollars. There are no dimes in this time period that have any significant collector value in circulated condition. Their value will be based on the silver they contain -- currently about 40 cents apiece.
Most Jefferson nickels were minted in such large numbers that they're not worth much more than face value. The major exceptions are:1950-D nickels are moderately scarce and worth several dollars in average condition."War nickels" dated 1942-1945 with a large mint mark over Monticello are worth at least $1 because they contain a small amount of silver.1938-S nickels are worth $1 to $5 depending on condition1939-D nickels are worth $3 to $40 depending on conditionA couple of error nickels, 1949 with a D over an S mint mark and 1954 with an S over a D, are worth extra, as well.NOTE: Regardless of many misconceptions, the above-mentioned "war nickels" are the ONLY American nickels that contain any silver. All others are made of a cupronickel alloy.
5 cents. Only a small handful of Jefferson nickels are worth more than face value, such as the 1942-45 silver war nickels, and the elusive 1950-D.
2.6 million.
US nickels show a picture of Thomas Jefferson's home, Monticello, but they're not minted there. At that time there were 3 active mints: Philadelphia (no mint mark), Denver ("D"), and San Francisco ("S") although 1950 nickels weren't minted at the latter. Please see the question "What is the value of a 1950 US nickel?" for more information.
US nickels that have collectable value in circulated condition are all nickels before 1945. Shield, V, and Buffalo nickels all have value over 5 cents, and the early Jefferson nickels do too. The 1942-1945 nickels with a large mintmark (P, D or S) over the monticello on the reverse are 35% silver and worth about $1.50 for silver alone. The 1950-D nickel also is worth more than 5 cents regardless of condition. Uncirculated coins often have premiums over face value even though they might be a common date.
Face value only. Nickels are the only denomination whose composition has not changed in the last 60 years so except for one or two rarer issues such as a 1950-D, they are generally not valuable.
Liberty head nickels were made from 1883 to 1912. Nickels from 1913 to 1938 are Indian head nickels.
11 dimes and 5 nickels.
2,630,030 nickels were minted at Denver in 1950. That's the lowest mintage of any Jefferson nickel, so 1950-D nickels are worth more than others of the same vintage. Interest in the coin has gone up and down over the years so retail prices have been pretty variable.
Let's say the number of dimes Pat has is D. The number of nickels would then be 73 - D. The total value of the dimes is 10D cents, and the total value of the nickels is 5(73 - D) cents. Since the total value is 580 cents (5.80 dollars), we can set up the equation 10D + 5(73 - D) = 580. Solving this equation would give us the value of D, which represents the number of dimes Pat has.
Mintages of pennies, nickels and dimes in the 1940's and 1950's was quite high, so they are considered common -- with few exceptions. In circulated condition, wheat cents are worth about 2 cents each. Steel cents from 1943 are worth 5-10 cents each. Nickels will generally have little or no added value. The exceptions being the 1942-1945 silver nickels (identified by a large P, D or S above the building on the back) that are worth about 20 cents, and the 1950-D nickel which is worth a couple dollars. There are no dimes in this time period that have any significant collector value in circulated condition. Their value will be based on the silver they contain -- currently about 40 cents apiece.
Most Jefferson nickels were minted in such large numbers that they're not worth much more than face value. The major exceptions are:1950-D nickels are moderately scarce and worth several dollars in average condition."War nickels" dated 1942-1945 with a large mint mark over Monticello are worth at least $1 because they contain a small amount of silver.1938-S nickels are worth $1 to $5 depending on condition1939-D nickels are worth $3 to $40 depending on conditionA couple of error nickels, 1949 with a D over an S mint mark and 1954 with an S over a D, are worth extra, as well.NOTE: Regardless of many misconceptions, the above-mentioned "war nickels" are the ONLY American nickels that contain any silver. All others are made of a cupronickel alloy.
1958-D Jefferson nickels are still found in circulation and are face value.