Retro Pitted Olives Personal checks are a fun and cheerful design of pitted olives in retro color frameworks. A fun fact about olives: The oldest olive tree is situated in Crete and is more than 5000 years old and it is still producing fruit. Until they are treated with lye and salt, olives are not edible and they are almost 20% of oil. So now you can get your olive fix without any fat with these Retro Pitted Olives personal Checks.