The rounded, downward curved margin set tabs are always a giveaway for a Nakajima (although there are some Nakajimas out there that don't use this design, mostly electrics.)

the rule for telling the difference between a SS and a Nakajima is: look at the margin set buttons, SS button ends turn up, Nakajimas turn down. There’s not a lot of other obvious visual differences.

Nakajima All (中島オール) went bankrupt back in 2019. (Not to be confused with the Nakajima Aircraft Company.) https://www.nikkei.com/article/DGXMZO41025530X00C19A2X12000/ https://newswitch.jp/p/17807 Archive of the now-defunct website:(https://web.archive.org/web/20180816074211/http://www.nakajima-all.co.jp/) Someone might've bought the equipment from the Nakajima All factory in Indonesia and is still pumping out new ones (since the electronic typewriters Swintec sells are rebadged Nakajima All ones), but I'm not completely sure.

Nakajimas can be distinguished from having the margin release key on the right side whereas very similar looking Silver-Reed machines (and Brothers) have it on the left.

The factory is in Indonesia, he explains, and is run by a team from Nakajima, a typewriter manufacturing firm from Japan. Every year, Royal still sells around 20,000 new electric typewriters and more than double that amount of mechanical typewriters. The latter have become desirable partly as decoration – a librarian might buy one for a display at the front of their library, for instance, suggests Althoff. The mechanical and electric models Royal sells cost between $300 (£238) and $400 (£317).