Leonardus (Leo) Petrus Beukeboom, is a signpainter and lettering artist from De Pijp, in which country, after completing his courses in 1962, Beukeboom worked trivial jobs until 1967 when he began working as a freelance signpainter, almost exclusively for Heineken International, an Amsterdam-based group which owns a worldwide portfolio of over 170 beer brands, mainly pale lager, though some other beer styles are produced?