Camping Gaz

I got this cartridge of Campingaz from freecycle a few years ago and it has been sitting in the garage for another few years.  The cartridge has a price sticker stating 28p!  

We finally get a chance to use it, and it worked, except the seals on the burner isn't very good, and the gas escaped overnight night.  We really should have brought some grease to improve the gas tightness of the seal.  Let see if the newer burner is any better next camping trip.