Publisher's Note An original 1959 Barbie, in her fabulous zebra-striped swimsuit, recently sold at auction for $4,500! Barbie collectables are hot--so hot that toymaker Mattel developed an entirely new line for adults, with 1995 sales estimated at $150 million. This guide looks at the history of everyone's favorite gal pal and her metamorphoses over the decades. Full-color photos throughout.