When did velvet flocked blacklight posters first appear on the market?
I'm trying to settle a friendly dispute about a particular blacklight poster called WHO ROLLED MARY JANE? I know the original poster is by an artist name Bill Olive and was put out in 1969 by Wespac Communications and is purple, pink, and blue in color. I need to know when the velvet flocked yellow blacklight version put out by Dargis Assc. Inc. came on the market. Any help is appreciated. Thanks!

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