PD, Thanks for some response.  No, the gas was still in the cylinders, in fact quite a lot of it.  Do not know the model of my stove; it is small and has a red triangular plastic tube case for travel.  Both stoves worked fine all summer with MSR or Optimus cylinders for fuel and worked fine for first run on the Coleman cylinders too.
Since I last tried using the stoves I have packed them away, and off the cylinders.  I just returned from the trip I was on and the stove/fuel are still packed away.  I will try them again when I get a chance and see if they want to work.