Anyone familiar with Browning Silaflex Rods from the 70's?

A Browning/Silaflex 322970, 7'0 5 Wt, Rod Photos

Silaflex year identification - Pre Browning, Collecting Fiberglass Fly Rods

Anyone know about older Browning fly rods? - 24hourcampfire

BROWNING SILAFLEX 332914 6.6 USA

Browning Vintage Fishing Rods for sale

70's BROWNING SILAFLEX---dilemma, Fishing with Fiberglass Fly Rods

For The Browning Collector, Collecting Fiberglass Fly Rods

For The Browning Collector, Collecting Fiberglass Fly Rods

BROWNING SILAFLEX 332914 6.6 USA

Browning Silaflex 322975 New old stock blank (Pic Heavy), Rod Photos