Need help finding info on 1973 monark

[stratos201s]

I recently was given a boat by a fishing buddy that's in decent condition. However, i cannot seem to find any info at all on the boat. Hin # is mak303171173 and is made by monark. Evidentally it's a 1973 model but what. It's very basic and stick steer. Sort of a trihull i guess and just a rectangle interior with nothing in it right now. I can't find any id plates but the hin # plate on the transom. Any help would be greatly appreciated. I plan to restore if floor is ok. Has 1 soft spot bout 6in diameter. No motor. Thanks in advance. No pics at the moment. It's white on top green on bottom and came from ohio.