Plomb Puller

Found this tiny puller at an estate sale. It was a contract tool for the "W.T. Co". I don't know who they were or what they made but I'd like to think it was Walker-Turner because I work on their machines often. Interesting things to me are the width of the crossbar (4") and the fact that the push-bar has a dedicated end that spins on bearings.  Any ideas anyone?

 

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