I'm gonna ask the shop owner I got these from what his source is. I realized when I bought them that they were reissues, but they seller didn't specify they were actually bootlegs - he just said 'these are reissues we're importing from Germany'. Kinda suspicious.
Kind of makes this look like bullshit as well:
http://cgi.ebay.com/Sonic-Youth-Sister-Purple-Wax-SST-Nirvana_W0QQitemZ150365510573QQcmdZViewItemQQptZMu sic_on_Vinyl?hash=item23027b9bad&_trksid=p3286.c0. m14