Seven are the Samuel Heath & Son K.F. 19400 model dating from 1964. One is a 1950 Monitor K.F. 4905 model.
Hi @cornishfisherman . All the stoves ( where I can see) appear to be fitted with Scew-fitted pumps, which was originally a Military specification allowing quick maintenance/ replacement in the field. Have a look at these links: SH&S 2 pint, paraffin,silent burner, ex WD Monitor:Military 1956 If these are ex-military it could increase their desirability/ value relative to standard models. Here are some tips on fettling stoves: Stove restoration. Parts 1 to 4 Best Regards, Kerophile.