That's neat. I think the Toyota identification may well be right. I
recall a friend having a similar jack for his beat-up '80s Toyota truck
(although the jack was yellow).

It also reminds me of one of my finds. This is part of a laboratory
hydraulic press. I saved it to make into a new press because I thought
it was neat, but so far I haven't got round to it. Now this I am 99%
sure is made in the USA:

http://www.mythic-beasts.com/~cdt22/carver1.jpg
http://www.mythic-beasts.com/~cdt22/carver2.jpg
http://www.mythic-beasts.com/~cdt22/carver3.jpg

Best wishes,

Chris