An Optimus No. 00, nickel-plated with tin. I'm guessing her date to fall somewhere between late 1940's to late 1950's. She has the Lux-shaped pot supports, later version of the blue tin. Came with Radius-labelled pricker, everything else appears original to the stove. No instructions, spirit tin or original box. Her parts sleeved for protection. Closed-cell foam-lined tin. The front little clasp was missing from the tin otherwise it was in fair shape. Looped handle on side of tin. Top with 'ORIGINAL', OPTIMUS globe logo with 'TRADEMARK' and 'MADE IN SWEDEN' Underside with what looks like a price tag (writing long worn off). Opposite side of her looped handle with 'AKTIEBOLAGET OPTIMUS UPPLANDS VASBY SWEDEN' Fount markings 'OPTIMUS No. 00' 'MADE IN SWEDEN' with some Arabic script, OPTIMUS globe-logo. Underside of tank with 'MADE IN SWEDEN' in the middle and 'AB OPTIMUS UPPL-VASBY' in a tight circle. Roarer burner with 'OPTIMUS SWEDEN' on one branch and Arabic writing on the other. That puts the stove between 1932 and 1962. Flame spreader likewise labeled 'OPTIMUS SWEDEN'. Undimpled and unlabeled spirit dish, nickel-plated riser tube, no stamping on burner hex. Double-ended spanner 'OPTIMUS MADE IN SWEDEN' and pricker with 'RADIUS SWEDEN' Pump cap and knob unlabeled, brass pump rod. Center fuel cap screws into pump-knob end when stove is deployed. Replaced her fuel cap and fount cap gasket with new ones cut from 1/16th" viton. Pressure tested with the caps on and the NRV failed as there was 1 tbsp of kero in the pump tube. Replaced her NRV cork pip with new one cut from Viton - NRV had a lead washer so it was easy to remove - spring and pip cup in good condition. Leather pump cup was fine, just needed some oiling. Test pressure passed without leaking, fired her up. Priming her. She ran well, just a little too much yellow in her flame so if I was anally inclined I may swap it out, but left it as-is as it's manageable for a user stove. Heated up some left-over chili/rice. Out of all the available draughtshields that came packaged with stoves throughout the last century, I feel Optimus's version for their roarers is by far the best in terms of performance/design and practicality. Tight fitting, only 1 access hole, small, strong, simple design, stays put and does the job. The Optimus No. 00 is a great little camping stove, a classic in almost every way. She's not a gas guzzler, has a good heat range, good pot support, stable, dependable, a beauty in form/function, small and compact with good fuel capacity. Her design has basically remained the same since she came on the market, over 100 years ago now. No stove 'collection' is complete without at least one of these characters.