If your pulse has not returned to its morning resting rate one hour later, you are still having an allergic reaction to the food you ate previously and cannot get a decent result on another food until either your pulse slows again or until the next morning.
CoinTrackers.com has estimated the 1964 Lincoln Penny value at an average of 1 cent, one in certified mint state (MS+) could be worth $12. (see details)...
You can consider all pre- 1965 dimes, because up through 1964 they were made of 90% silver alloy. As of 02/2010 that gives them a scrap value of about $1.20, but if the coin is much older than the mid-1950s it could be worth more (possibly much more) to a collector.