I've only ever seen one other copy of this poster, and it's in the Australian Government archives.

It's advertising the iconic John Pinder restaurant 'The Last Laugh'. This was the epi-center of the Australian cultural scene for it's brief history in the 70s.[Think the Melbourne scene at the time of Nick Cave's The Birthday Party...] John Pinder sold it & used the proceeds to found the Melbourne Comedy Festival

I know it's highly collectible, but not quite sure what it's worth. If it doesn't sell here in NZ, i'm planning on sending to Melbourne

http://www.cv.vic.gov.au/blog/archive/comedy-no-laughing-matter/

Dimensions are 970mm x 615mm

Viewing welcome in Central Welli [I'll get some better pics up as well]