URBAN IMAGE ARCHIVE
Check out Urban Image's terrific site for stacks more amazing period photographs like this lot (you'll have to register to access the whole archive but all they want to do is send you an occasional newsletter I think?) - the Slits & McClaren galleries are my favourites I think? There's a ton of other areas covered too, i.e. not just punk / post-punk, defo worth an eyeball when you have an hour spare...
Top to bottom: Siouxsie Sioux, The Slits, Suicide, Wire, Malcom McLaren, Sex Pistols, Buzzcocks, Magazine, Elvis Costello, Gang Of 4, The Blockheads, Mark Mothersbaugh & Crocus Behemoth.