110vac to 110dc

All older "brush" 110V AC motors such as drills, handheld grinders, vacuum cleaners, sewing machine motors, etc, were known as "universal." They run on either AC or DC.

To reverse them you must separate the commutator connections from the field. This gives you 4 wires, the two sets of which are in series. To reverse the motor, either AC or DC power, you reverse one set in relation to the other set. In other words, leave one end of the field connected, and reverse the two commutator leads in series with the field

A permanent magnet motor would likely only have two leads........the commutator (armature) as the "field" is a magnet