In 2000, what did the famous F. C. Barcelona’s scout Carles Rexach use to write up a contract for Lionel Messi?

“An oral contract is not worth the paper it's written on.” That's an often-quoted remark attributed to film producer Samuel Goldwyn. What he actually said, praising studio executive Joseph Schenck who was known to be steadfastly honorable, was “His verbal contract is worth more than the paper it's written on.”

In an interview from 2018, Barcelona Scout Carles Rexach recalls how 22 years ago to the day he signed Leo Messi by making a written commitment to his father on a restaurant napkin.