The key is that it is executed with, and a part of, the original contract. Sometimes agents confuse addendum with an amendment, which is a modification later to the terms of an already-accepted contract. It has surprised me how often experienced agents use the wrong term for a document.
At this time, wax crayons were big, dull-colored, and clumsy and were used mainly in industry. But Binney & Smith used a combination of paraffin wax and industrial pigments to create crayons that were kid-friendly. In 1903, the first yellow and green box of eight Crayola crayons appeared. (The name Crayola means oily chalk).
Artist Herb Williams is a Crayola loyalist, but not because he likes drawing with them. Williams buys the crayons in bulk and melts them down to create some dizzying, colorful sculptures. Some pieces have required up to 250,000 crayons, which means Williams actually has an account with the company.