Well it just so happens I have been making a collection myself over the last few months, from the Damasakeen to the Contour.
Can't really find you a list, you'll have to scout about, proper information is scattered and scarce but I hope this helps.
Gem Damaskeene: The original 1912. Slightly curved head, some say a better shave than the 1912 but essentially looks the same. Under top says "use only Damascene blades". The first were open comb and very rare/expensive, The last say "use Damaskeene blades" as they were making new blades. Made from 1912-1921
1912 Gem/Ever Ready/Star. From 1921 to... Gem stopped 1930 then ER in UK and Star in US continue. Still produced post-war in UK, various handles
ER 1914. Apparently made as early as 1909, known as the "little lather catcher" you will see "pull here" on the top cap, as it does not flip from the back like a 1912. Says patented March 24 1914 on the back, like I say original design from 1909 but I guess that would not have the patent info
ER 1924. Also known as the "Shovel Head" unusual as it is hinged from the front with a clip at the back. This and the 1914 are, to me, pretty "efficient" razors
Gem Micromatics. The original TTO. Open Comb 1929. Clogpruf 1940. Bullet Tip 1947. All pretty efficient, the OC more so.
ER Streamline.Also Gem version. Dates vague, 30's -50's .Premium heavy chrome coated (as opposed to nickel) Flip top, like 1912. Expensive
Gem, ER "Heavy Flat Top" G-bar/E-bar. Not sure of the dates, post war some time I think. Nice fairly mild, head like a 1912 straight safety bar. Slightly heavier but not as heavy as the Micromatics.
Gem, ER Featherweight. Light with plastic handle, usually white but seen Gem in black. 1950-53 maybe, from memory. Pretty much the same head as the G-bar.
Gem "Push Button" . Black plastic handle, very light, very mild. Uses a button under the head to release top cap.
Gem Contours. Light with a curved plastic handle, pretty mild. The Contour I uses the push button mechanism, the Contour II uses the flip like the 1912. The last of the Gems. These and the "Push Button" not my favourites, a disappointing end.
Then there are the original "Lather Catchers" that came before. I am on the look out for one myself. Can't really tell you too much about them. I think they were originally designed for a wedge but can be used with some shims.
And there are the "juniors" usually 1912 type but also lather catchers. Not sure what defines a junior. Often different handles .
Prices! So difficult. Damaskeene, especially OC, and Streamline, usually in a set, the most expensive. Others vary too much depending on condition and case etc. I have found some bargains and paid too much! I really don't know