The radiant time series (RTS) method is a new method, derived directly fiom the heat balance method, for performing. design cooling load calculations. It effectively replaces all other. simplified (non-heat-balance) methods such as the cooling load.
The last wheat pennies were made in 1958. They were produced from 1909 to 1958. They are generally common and worth a few cents above face value and can be found in pocket chaâ¦nge.
They were most likely made by accident when copper blanks remained in the press as production began on the new steel pennies. In 2008, Steve Contursi sold a 1943-S authenticated copper wheat penny for more than $100,000 to a private collector. Contursi had bought the coin only a week earlier for about $72,000. Nice profit. How to spot it: The easiest way to determine if your 1943 cent is copper (and valuable) is to test it with a magnet. If it sticks to the magnet, it is a steel penny, and not valuable (but still pretty nifty).