I posted this in another forum and generated some discussion but didn't get much information about the specific machine I just purchased (my first typewriter!) which had been my goal. I wanted to see what peoples' thoughts were here, and whether this seems correct. 

I purchased a Hermes typewriter, model 2a. The logo on the typewriter, however, just says "Hermes." It is definitely a Hermes machine with the body of a Hermes Baby, but is not labeled Baby or Rocket or anything else. I could not find any examples of this "Hermes"-only logo in the Typewriter Database. If you look at this history of the Hermes Baby, you can see that all iterations of the logo have the word "Baby." https://typewriters.ch/collection/hermes_baby.html 

After extensive scouring of the internet, I found several examples of this typewriter model, identical to the one I purchased. They all appear to be 1949 Hermes Baby models without the "Baby" logo. 

This machine with serial number 5129511 (see photos) has just "Hermes" as the logo:  
https://www.ebay.com/itm/Vintage-Hermes-Travel-Portable-Typewriter-Case-Made-In-Switzerland-5129511/183755910472 

This machine with serial number 5132313 (see photos) has just "Hermes" as the logo: 
https://www.ebay.com/itm/Vintage-HERMES-Rocket-Baby-TYPEWRITER-Paillard-Switzerland-Portable-Typewriter-/133005461228 

This YouTube video shows the serial number 5136534 at 15:55 and also has just "Hermes" as the logo (seen at 2:42): 
https://youtu.be/4MepR2pcHVM?t=954 

I guess I'll be adding mine to the Typewriter Database to represent. But it seemed odd to me that it's the only Hermes Baby logo without "Baby" in the logo.