At least $0.91.
The Kennedy half dollar is 40% silver so it might be worth more.
Correction
As of 01/2015 the retail value for a complete 1968 set from all 3 mints is only about $6. Denver was the only Mint that struck all 5 then-available denominations that year so a complete mint-state set of D-mintmark coins would be worth about half the total. As noted, most of that is contributed by the half-dollar which was struck in 40% silver.
Coin production in 1968 was affected by ongoing efforts to recover from the coin shortage of the prior 3 years as well as reintroduction of mint marks. Philadelphia didn't strike any nickels or halves, while San Francisco was pressed into service to mint circulating cents and nickels as well as proof coins. As a result Mint Sets contained an unusual distribution of coins: three cents, two nickels, two dimes, two quarters, and one half.
The 1986 Uncirculated Mint Set sold for $7 in 1986 and today is valued at $16.
It wouldn't be a proof set if it was struck at the Denver mint (all proof sets 1968-present have been struck at the San Fransico Mint) and so it would instead be a partial mint set. I'd say it would be worth about $3-4 if it was sealed.
There is no Denver Currency Plant. There is only two places that Prints Currency. It would be Ft. Worth Texas or Washington DC. The sheet my be a Federal Reserve Bank note marked Denver.
If well-worn, about $6 regardless of mint mark. If almost uncirculated, 1940 quarters from Philadelphia are worth around $10, S-mint (San Francisco) coins go for about $15, and D-mint (Denver) coins are about $30.
The "D" mintmark means that it was produced in Denver, Colorado. The terms Uncirculated and Mint State mean the same. The coin has not been used, shows no sign of wear from being in circulation, as is from the Mint.
I think that you are referring to the token packaged with uncirculated mint sets from the Denver mint. It has little or no value.
Unless it is in exceptional uncirculated condition, an average uncirculated 1957 Philadelphia mint cent has a value of about $12 and a Denver mint has a value of about $5.
Face value only. The coins aren't old enough to be worth more.
Current retail value is $8.00. Issue price was $2.50
It could not have been minted at the Denver mint. The Denver mint did not start striking coins until 1906.
This is a token that is included in the Uncirculated Mint Sets issued by the U.S. Mint. It has little or no collector value -- you may be able to find them in a dealer's miscellaneous bin for 25 cents or less.
First off, the "D" is for the Denver Mint. It depends on the condition that its in. Average Circulated........$0.60 Fine...............................$0.65 Uncirculated-60.............$4.75
Most of the sets are going to range in price from $10 to $30. If you find an uncirculated set, it will be worth a price of $100 or more.
If they are uncirculated and in mint condition, maybe £1 to £2 GBP. If they have been circulated, not much.
From Philadelphia (no mint mark), face value if circulated up to 20¢ if uncirculated. From Denver (D mint mark), face value up to 25¢ From San Francisco (S), face value up to 35¢ Depends on condition but about 7-10 cents if in average circulated condition or a few bucks if uncirculated.
The value of a 1935 penny with the Denver mint mark in circulated condition is typically around 15-50 cents. If the coin is in uncirculated condition, it could be worth $5-10 or more to a collector.
There's no such coin. All 1968 halves were struck at Denver, and Philadelphia didn't start using a P mint mark on half dollars until 1980.