Originally Posted by Rip Tide
Most all of the early hollow glass rods were made from that same coarse tobacco brown fiberglass. Many were painted over but are still that same brown underneath.
That white St Croix is probably solid glass
You are right about that St. Croix.
I toured the St Croix plant with the owner. At the time they still made solid fiberglass rods for many other companies. Lots of them were the kiddie rods matched with a Zebco spin cast reel.
The rod blanks were solid white fiberglass dowels that were put into a grinding machine that ground the taper to the tubular glass dowels, Then they were polished and the handle and guides put on.
The dowels went in one end and a tapered fiberglass blank came out of the other end of the tapering machine. I assumed it could be set to put any taper on any length of rod.