I thought the bottle jack looked deeply corroded...
If the rust around the base of the cylinder is beyond the surface, I wouldn't want to trust it with anything heavy. But it could be useful as the force for a press.
If it could be made to hold pressure safely, I agree that as an old jack, it will be more jack for less money than a new one

Hit that thing with a wire wheel and let's see what it looks like.
It may be that all the rust on the weld and fluid channel are just cosmetic.

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On some nights I still believe that a car with the fuel gauge on empty can run about fifty more miles if you have the right music very loud on the radio. - HST

1983 300SD - 305000
1984 Toyota Landcruiser - 190000
1994 GMC Jimmy - 203000

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The rust on the bottle jack appears to be a non issue......it wouldn't be a big deal to rebuild....probably easier than the trolly jack.

That type trolley jack get moisture down the shaft of the pressure release knob and corrode internally and usually seize/leak.

Like I said, parts can be an issue...especially Chinese throw aways.

I'd go to some estate auctions...they basically give those kinds of things away pennies on the dollar.....may find some quality tools too.

I think they're both old. The bottle jack is probably older -- its label was painted on. The floor jack had stick-on labels, but they are worn out.

Neither jack has anything beyond surface rust. I was thinking I'd start with the bottle jack, so I'll take it to bits sometime... maybe next Monday.

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"Senior Luna, your sense of humor is still loco... but we love it, anyway." -rickymay ____ "Your sense of humor is still loco... " -MBeige ____ "Señor Luna, your sense of humor is quite järjetön" -Delibes

1982 300SD -- 211k, Texas car, tranny issues ____ 1979 240D 4-speed 234k -- turbo and tuned IP, third world taxi hot rod

2 Samuel 12:13: "David said to Nathan, “I have sinned against the Lord.” And Nathan said to David, “The Lord also has put away your sin; you shall not die."