The price of a 1903 dime will vary depending on the condition of the coin. On average, the coin will be worth an estimated $90.00 in poor condition.
It really depends on the year and condition. A later date in poor condition is unlikely to fetch more than $3. A pristine condition rare date coin could be worth several hundred dollars. Without knowing those key things, it is impossible to answer your question.
As of May 26 2011 the value are as shown. A 1943 Mercury dime in poor condition or quality is worth somewhere around $2. One in great or uncirculated condition is worth up to $27. A 1943 D Merucry dime in poor condition is worth around $3. One in great or uncirculated condition is worth up to $30. A 1943 S Mercury dime in poor condition is worth around $3. One in great shape or uncirculated condition is worth up to $30. To find the mint-mark on a mercury dime look at the reverse. Look to the left of the ax and the should be nothing or an D or S. The values of your coin will change as the price of silver changes. The values stated in this answer are approximate and may not give the absolute value but give you an idea of its value.
The value of a barber 1908 dime varies in value. A barber 1908 dime that is considered to be in poor condition is worth approximately $3.00, and one considered to be in perfect mint condition has values upwards of $170.00 and more.
A 1916-S Barber Dime in about good condition (AG3) is worth: $2.50.
The 1943 Liberty Head Dime, also known as the Winged Head Dime or Mercury Dime, were only minted in Philadelphia, Denver, and San Francisco. What appears as a "W" on the right side of the left-facing profile bust of the goddess Liberty (obverse) is actually Adolph A. Weinman's monogrammed initials. The "W" is superimposed over the letter "A". This gives the appearance of a "W" when in fact it is just the designer's initials: "WA". The true mint mark is located on the reverse (fasces intertwined with an olive branch). The true mint mark is located after the word "ONE" in the word "ONE DIME" and the bottom leaf of the olive branch that intertwines around the fasces. The mint mark is either "D" for Denver, or "S" for San Francisco. There are no mint marks representing coins minted from Philadelphia. Any value for a Liberty Head Dime is dependent upon the grade, condition, and mint mark of the coin. Grades can range anywhere from Poor (1) to Mint State (70 being the highest).
A genuine 1851 Seated Liberty silver dollar is a rare date, worth a few thousand dollars even in poor condition. If it's an 1851 Indian Head dollar, then what you have is a Chinese novelty coin, and it's not worth anything.
Condition is everything on Seated Liberty coinage, in excellent condition, it is worth around $100, in poor condition only around $2-4, in average condition $4-20. Do not clean your coin. Cleaning a coin can only make it lose value, it will never increase the value of your coin. But I would have a reputable coin dealer give you an estimate of the grade so you know how much it is worth.
The value of coins depends heavily on the condition. A coin in very poor condition may be worth no more than its metal value.
Condition is everything when it comes to Barber coinage. In very poor grades it is only really worth melt value, about $2 or so, or depending on collector demand, even as much as $5-25 in circulated grades (the 1894 dime is known as a semi-key date) However, in excellent condition the price increases dramatically, if in about uncirculated condition it can be worth over $200.
As a rough estimate of this coins value, assuming the coin in poor condition, it would be valued at around $8. One in perfect or mint condition can be worth as much as $285.
A 1941 Walking Liberty Half Dollar is poor condition is worth about nine dollars. The uncirculated value of this coin is around fifty-five dollars. The silver content in the coin is valued at seven dollars and fourteen cents.