Old hydraulic floor jacks

[Phil Dart70]

I found a vintage hydraulic floor jack I was wondering if anyone has any info on this. It says what appears to be green cast any information is appreciated

 

[NYBODYMAN]

Nice find. What do those embossed letters say on the outside?

 

[RTM]

I see Greencastle down the spine. From Greencastle Manufacturing Company

Automobile Trade Journal and Motor Age

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