can someone ID this jack

[db130]

http://boston.craigslist.org/nos/tls/2553581702.html

in case the ad disappears:

i'm not interested in it but i figured someone here may find it interesting. the price is right.

 

[oldtools]

Not my stuffs but nice jack. Don't know the brand. I would pay $60 for all the tools.

 

[oldjacks]

It is a Walker Mechanical Jack from the mid 1920's. Just sold one of these a few days ago that I had on craigslist. Very durable jacks that will last nearly forever.