I'm hoping that someone can recognize it, but you can come pretty close by following a few steps:
Measure shaft diameter = helps get the NEMA frame number, for instance 7/8" shaft would likely be a 143 or 145 frame. Nema frame info here:
http://www.iprocessmart.com/techsmart/basictraining.pdf down around page 20
Open it up, and count the windings. Likely to be a four pole motor, nominal 1800 RPM (likely about 1725-1740 under load)
You already know its a 220/440 Wye wound motor.
IF it runs, AND you have three phase available (still have the phase converter?), run it and measure the running current. Would be more meaningful if it could be put under load, but even unloaded will be useful.
Determine the type of motor enclosure - Yours looks to be totally enclosed non vented TENV or totally enclosed fan cooled TEFC
Go to this website
http://www.centuryelectricmotor.com/Applications/AdvanceCatalogSearch.aspx#ACMotors and enter the information that you have. It should come up with something close.
You "might" have to measure the "stack" length (the length of the metal stuff, from front to back, that the windings are wound around.) to chose between a couple that are close. The more information that you can enter in the form, the better the odds of accurate info.
Its a place to start anyway. Good luck.
Edit: I like Joe's answer, just use a 1.5 HP VFD, should work fine.
Ruben