Some of you may already know this, but if you look on the bottom back flap of Hollywood and Vogue patterns, the date is stamped on the bottom. The last two numbers are the year. Check it out. Here's how I discovered it: http://snapped-garters.blogspot.com/2009/04/i-have-cracked-hollywood-pattern-code.html Also, if anyone else has any info on those stamps on the patterns, please share. Hollywoods are my favourites. Thanks.