Upon much closer examination,I found the exact markings in 3 other places on the drive and the prop had marker written "test prop" on it. Drained the gear oil which didn't look bad and was dark green so I assume it was the high performance type however it did not appear to have drained a full quart of lube.Planning on making a pressure testing gage from a Harbor freight brake bleeder as next step to see what I got here.So far so good though after pulling the prop ,zinc skeg,and removing the planing fin I did not observe and grease or anti seize anywhere.Charlie