As I eyed purchase of my 30, I reviewed CCS details and will share here some info that is beginning to come together. Corrections welcome. Credit is due and my thanks to many members who have posted examples and researched before me. Notably (for this post), @Radler and Gieorgi added some key relevant details which are much appreciated. I thank you all. My focus was limited to No.30... granted Phoebus production / timeline may well be explained elsewhere, IE 1887 an established manufacturer 1901 name: Gerson Boehm & Rosenthal, Wien 1916 name: Maschinenfabrik Josef Rosenthal. MJR logo is trademarked, it seems plausible at this time *"PHOEBUS" name may also have been trademarked, by the maker MJR? *PHOEBUS: Greco Roman light / bright hence the gleaming bright lighthouse logo (applies moreso to 191x / 192x Phoebus lamps?, I'm a stovie). 1938 Note 1 Austria incorporated into Germany by Hitler. c1938-? : Co. changed, name: Phoebus-Werke AG … the only period "MADE IN GERMANY" was stamped into Phoebus stoves 1945 - 55. Phoebus Werke AG was under Russian rules source 1955 end Russian control, Austria is (again) officially an independent nation (and member of the UN).----------------- I'm not offering following details in exact sequence. I do suggest sequence of 2 line items: "Z-last one" and #1 Doug's bun foot as the earliest version, with early large reserve lid, lg. boss on side of tank, early burner, riser & legs. Brought to my attention: Tin is unlike any Phoebus examples (there are bun foot examples in this same "Fogão" tin. So, tin was outsourced, maybe? (other Traveler models outsourced containers). [[ 1890 as an established manufacturer, could make very early stoves/lamps ? 1916 name Maschinenfabrik Josef Rosenthal aligns with MJR logo. It seems No.30 production could have begun, anywhere: 19teens to mid 1920s? ]] ------------------------------ TANK: from what we see, the 1 pint tank of same shape with the same text stamped on top (on Doug's) continued from beginning to the end of production (after '55) ...all w/same logo (4X on the top). IE: All 30s have same text atop of tank, the only exception, the few WW2 years that text: MADE IN GERMANY replaced the MADE IN AUSTRIA. Due to tank details (primary method) being not as helpful for the No.30s (most are the same tanks). Below is best effort of tentative sequence of No.30 production using other details.hold comments until "end"