Re: What is it?
Although it has many of the same design features as a Crestliner, I've not seen an aluminum Crestliner with that shape or style bow.
Also, the Crestliner aluminum boats from that era all had a row of rivets running up high at an angle between the side rib and the bow plate.
One brand that first came to mind when I first saw it was an Arkansas Traveler, but I can't put my finger on why other than it's basic shape.
The made aluminum boats back then as well.
I am still leaning towards it being a retailer branded boat of some sort, to the likes of Sea King, Elgin, or similar. I don't see any obvious points of emblem attachment and that's fairly common with rebadged boats for some reason.
Also, it's history may lead to some clues as to where it's been, if it's been in your area for a long time, chances are it could be a local sold or local made boat. Every area seems to have it's favorites as well as many area specific brands.
For instance, Crestliner, Arkansas Traveler, and Texas Maid boats are pretty rare in this area, but MFG, Starcraft, Lowe, and Alumacraft are abundant. They were just brands that had a good local dealer network, and have had for years here. Also, since NJ has a gas motor ban in most freshwater, we don't see many small runabouts, the most common boat is either an aluminum jon boat or open V hull or a larger bay boat or center console.
I must say you've got me more than curious as to what that is, that barrel joint or crimp joint at the transom could be a clue but I suppose it may just be an older style of attaching the panels. That type of joint was bad for holding moisture and corroding in saltwater areas. I had an old, small Feathercraft that had that style seam too but that boat was from the early to mid 50's and much smaller.
What caught my eye first on your boat is the shape of the bow, it's far sleeker looking than most others it's age.