The product is a rare 1981 P Washington Quarter that weighs only 5.4 grams and is filled with the mint mark. This unique coin is composed of copper and was struck as a business strike in Philadelphia. It is a valuable addition to any coin collection, especially for those interested in US coins from the 1980s. The Washington Quarter, featuring the iconic image of George Washington on the obverse, holds historical significance and is highly sought after by collectors.