Chuck,

Are you looking for an original-style jack? eBay or the Swap Meet are your best bet. Be patient. Here is info on the original 1952 jack.

Modern bottle jacks are hydraulic - original-style bottle jacks were screw/mechanical.

A bottle jack is OK on level/smooth/solid ground.

A floor-type jack (if you are OK with non-original appearance) might be safer on less-than-ideal ground (and, jack stands increase safety, after you get the wheels off the ground).