https://www.reddit.com/r/typewriters/comments/1cffdj8/the_typewriters_of_ripley/

see also, with little to add: https://www.reddit.com/r/typewriters/comments/1s471gq/typewriter_personality_key_to_a_mystery/

Royal Century - Silver Seiko Typewriter Review - YouTube<br /> by [[Joe Van Cleave]]<br /> accessed on 2025-08-28T11:37:07

Broadly a review of the Royal Century made by Silver-Seiko, but he also compares the performance with the Hermes Rocket/Baby and the Smith-Corona Skyriter, which he feels aren't as solid as the Century despite their lighter weight and portability.