It appears that Sylvia Plath and Assia Wevill both were photographed with Royal typewriters...
Assia Wevill's was likely the 1948 Royal Quiet Deluxe; and Plath's is the 1954 Royal HH.
Plath's Royal typewriter is now held by Smith. Here is a video of that machine in action. And, you can read more about Royal typewriters here, if interested.
All links accessed 1 May 2022.
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