I thought my FL5 was the same as the one Ian has posted here but looking at his, I spot at least one difference. Ian's lamp shows a plate in the centre of the reflector at the rear - I presume this was to blank off the hole through which the single air intake would have passed in the first version of the FL5 and would suggest Tilley were modifying their stock of reflectors to use them up. My reflector doesn't have this blanking plate so I assume my lamp is slightly later than Ian's. I would venture to suggest, therefore, that Pete's two lamps represent either end of a spectrum and Ian's and mine are transitional versions resulting from Tilley using up their stock of parts. Whatever, my lamp has the long spindle control cock, the 4-hole NRV and earlier door catch arrangement. I like the enamelled ventilator, which appears far more resilient than the later, painted, ones and has survived well, although the whole lamp appears to have seen only light use. A light fettle - cleaning and new seals - should see it working as Tilley intended. It also has the benefit of the short stand and the metal grid to protect the glass.