1971 Jefferson Nickel S. With No Mint Mark

5 cents? Assuming by S you mean San Francisco mint? Nickels minted in Philadelphia did not use a mint mark (except for 1942-1945), so that is probably what you have. Nothing unusual.

Red Book suggests that this date coin ..1971 a ccouple of thousand were released by mistake without a mint mark..there was supposed to be an s at the base of the pigtail. I will try to find the sitation. on ebay there is a mint nickel for $1,500.00... I just can't make out if anything short of mint is worth a nickel. Ah well..thanks for your feedback.

This citation from another forum came up in Google and explains my confusion I think...<<As far as I know, there were NO Jefferson nickels struck at the Philadelphia Mint ( no mint mark indicated a Philly struck coin) in 1970.
There were 515 million D's and 238 million S's business strikes and an additional 2.6 million proofs in 1970 (S mint marks also)
In 1971 there were 106 million Philly coins ( no mint mark), 316 million Denver, and 0 (zero) business nickels struck in San Fransisco

In 1971, the San Fransisco Mint did produce 3.2 million proof coins, some of those were struck with the missing "S" mint mark and escaped enclosed in proof sets.
Very valuable and highly collectible.>>

No..Not mint, but I see that they would only be mint pieces ..since they escapd detection by being enclosed in proof sets. So mine ain't worth bubkiss,(sp)