As you can see in the photo it is a quick disconnect Calor gas BUTANE regulator.
Removed from an old portable heater.
Has a very short length of hose but this is no good so will need replacing.
Hope this would be of use to someone else.
Collection is from Kingsclere.
Calor Butane gas regulator (Kingsclere RG20)
This offer has been gifted to someone and is no longer available.