Their collector value would all depend on the dates on the nickels and their conditions.
To get an idea of their metal value, the coins are 35% silver which is 1.75 gm per coin. There are 40 nickels in a roll so the total amount of precious metal is 70 gm, or about 2.25 troy ounces. As of 09/2015 silver is around $15 per troy ounce.
That is a "war nickel". War nickels minted between 1942-45 are identified with a large P, D, or S above the Monticello on the back. These nickels are 35% silver, and so have a definite value. The idiot who says they're worth "about 5 cents" is stupid.
What you saw as an "E" is not a mint mark, and is actually an "F", the monogram of the coin's designer James Fraser. The mint mark on buffalo nickels is under the words FIVE CENTS. Plain (no mint mark) and "S" 1936 nickels are worth a dollar or two in average condition. "D" coins are worth slightly more.
The only U.S. Nickels to contain any silver (only 35%) are the "War Nickels" dated from 1942-1945. They are identified by large P,D,S, Mintmark letters on the reverse of the coins. The current value of a War Nickel is about .90 cents just for the silver.
Yes, all the silver war nickels have mint marks, even Philadelphia. There will be a large letter P, D, or S above Monticello.
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.
It's not possible to answer without knowing the coins' date(s).
No such coin exists. All 1942-D nickels are made out of the standard 75% copper 25% nickel. Only 1942-S and 1942-P nickels were struck out of the "war nickel" alloy of 35% silver. A 1942-D nickel is worth about 7 cents if circulated and a couple of bucks if in better shape.
Not a one. Nor do any nickels from the 1950s, 1930s, 1920s, or anything earlier. Nickels have been made of the same copper/nickel blend since they were first introduced in 1866. The one exception are the WWII-era war nickels (1945-1945) which contain 35% silver.
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.
That's a VERY broad question. Nickels were first struck in 1866 and were made at 3 different mints so there are hundreds of possibilities to choose from. For more common dates, the rules of thumb are:Part-silver "war nickels" dated 1942 to 1945 and with a large mint mark on the back are worth about 0.05 times the current price of silver.1938 and 1939 Jefferson nickels are worth a small premium, especially if they're not very wornMost other Jefferson nickels aren't worth much more than face value unless they're in top-grade conditionBuffalo nickels from the 'teens and 20's can be worth a premium ranging from 75 cents to many dollars, depending on date, condition, and mint mark.Also, remember that popular misconceptions notwithstanding, 1964 and earlier nickels were NOT struck in 90% silver. Except for the "war nickels" mentioned above, all US nickels have been struck in an alloy of 25% nickel and 75% copper.
That's a VERY broad question. Nickels were first struck in 1866 and were made at 3 different mints so there are hundreds of possibilities to choose from. For more common dates, the rules of thumb are:Part-silver "war nickels" dated 1942 to 1945 and with a large mint mark on the back are worth about 0.05 times the current price of silver.1938 and 1939 Jefferson nickels are worth a small premium, especially if they're not very wornMost other Jefferson nickels aren't worth much more than face value unless they're in top-grade conditionBuffalo nickels from the 'teens and 20's can be worth a premium ranging from 75 cents to many dollars, depending on date, condition, and mint mark.Also, remember that popular misconceptions notwithstanding, 1964 and earlier nickels were NOT struck in 90% silver. Except for the "war nickels" mentioned above, all US nickels have been struck in an alloy of 25% nickel and 75% copper.
That's a VERY broad question. Nickels were first struck in 1866 and were made at 3 different mints so there are hundreds of possibilities to choose from. For more common dates, the rules of thumb are:Part-silver "war nickels" dated 1942 to 1945 and with a large mint mark on the back are worth about 0.05 times the current price of silver.1938 and 1939 Jefferson nickels are worth a small premium, especially if they're not very wornMost other Jefferson nickels aren't worth much more than face value unless they're in top-grade conditionBuffalo nickels from the 'teens and 20's can be worth a premium ranging from 75 cents to many dollars, depending on date, condition, and mint mark.Also, remember that popular misconceptions notwithstanding, pre-1965 nickels were NOT struck in 90% silver. Except for the "war nickels" mentioned above, all nickels have been made of a cupronickel (25% Ni / 75% Cu) alloy.