Firstly the photo's (mainly 'as received'): ... and now the flame shots, but featuring a used trivet in some of the pictures! Firstly outdoors . . . . . . and then in the somewhat darker confines of my workshop . . . . . . only the flame was burning so cleanly, it's all but invisible! Before firing her up, I added 3 drips of 3-in-1 oil to the pump tube to lubricate the pump washer and swapped over the lead washer from underneath the spirit cup with a super duper Fettlebox item. After a slight leakage from just above the spirit cup, I then added an upper burner washer which did the trick. The burner was only tightened by hand and not even 'nipped up tight' with a spanner. The spirit cup was a bit mis-shapened upon arrival, so I had a quick go at straightening it up. The initial flame (outdoors) was a bit yellow and there was a small leak as mentioned in the previous paragraph. However, second attempt and all is well, except that the flame is such a pale blue, it doesn't show up outside! So I took the stove, still alight, into the relatively darker confines of the workshop. Still can't really see the flame, but the flame spreader certainly shows that the stove is lit! The Monitor instructions are for the C11 (this stove) and it's sister stove the C15, exactly the same but fitted with a silent burner. These stoves are 'collapsible' "2 pint" domestic stoves and according to the adverts, are suitable for the 'motorists' amongst others. This stove features a bevelled burner washer seating (pictured) and was supplied with a single lead washer below the spirit cup. As the burner unit is tightened down, I believe that the idea is that the lead washer is not only 'squashed' between upstand and spirit cup, but is also 'squashed' up against the burner screw threads. The M. o D. arrow head can be seen with the numbers '11' and '56', so either it was made in November 1956, or supplied to the M. o D. that month/year. The filler cap incorporates the Monitor safety valve to prevent over-pumping or excessive air pressure in the fount. The burner unit features no obvious markings. These stoves are supplied with what Monitor call a 'parking plug' which is the hexagonal screw cap that fits onto the upstand when the burner unit is removed. Unlike other stoves, there is nowhere to store the plug on the stove itself when the burner is in place. The plug is also fitted with a single lead washer, but it only seals onto the outer lip of the washer seat and does not get squashed into the washer seat / burner thread like the other one does. Incidentally, in some of the photo's, it looks a bit wonky on the upstand, but that is only because it is resting there, not because it is cross threaded! Finally, for some reason or other, I received 4 legs instead of three, together with 2 Primus prickers. There seems to be an abundance of '1956' Monitor C11's 'new old stock' kicking around at the moment, so grab one while you can, they're really great stoves!