[uncleboo]

I'm not an expert, but, I'm pretty sure it is a Potter. Maybe this will help.
SEC = SeaCraft Inc (Potter 1969 thru 5/80)
csy = Carribbean Sailing Yachts (1980-1982 23'& 27' SeaCrafts only)
SIC = SeaCraft industries Corp (1980 thru 1987 other SeaCraft Models) (Potter on Board of Directors approx 1 year after sale)
TXY = Sarasota Marine Corp ('86-'88 csy Parent Co)
SIC = Tracker SeaCraft of Fla (1987 thru 1990) all models
SXC = Stern Craft Corp (1994 Silver King Parent then Tracker Parent Co in 1995)
MIC = Silver King Boats (1994-2002 Mako Marine Parent Co)
MRK = Mako Marine (2002 Parent Co SeaCraft from Tracker