Though it's clearly had some modern additions (ie waist straps & foam!): http://www.ebay.com.au/itm/Paddy-Pallin ... SwjDZYgt92
Not mine, but I'd almost be tempted to pick it up to take walking just for kicks. I'm sure a couple of forum members must've used or made similar packs, how do they go with having a flat piece on your lower back?
Mods, please feel free to move this to the Specials forum if you think that is the proper place for this topic.