About 20 years ago, my Dad gave me a "Shakespeare Wondertroll 52" electric trolling motor. It has one toggle switch for Off, Low, or High. It also has a label "6 or 12 volts". That's all I know about it. I have tried without success to find any specs for it; specifically the thrust rating.<br /><br />Does anyone have access to this info?<br /><br />Thanks in advance!