This is the second boat I've owned. I purchased it from the original owner in Southern California and then refreshed the engine and fuel system, added a Bimini Top and then removed decades of oxidation and scum stains to reveal a deep, dark orange gel-coat finish.
Here's some pictures showing the transformation as I buffed it out, I actually machine sanded the sides.
Here's what she looked like after I completely buffed out the entire hull, look at the gloss coming off the sides of the hull and look how clear the all original plexi-glas wrap-around windshield is... not bad for a windshield that's over 46 years old...