The 59 was an interesting departure in shotgun technology. To get lighter weight, Winchester did something I don't believe any manufacturer has done before or after, which was to use a glass fiber-wrapped barrel, i.e., a thin metal tube wrapped with fiberglass and binder polymer. I think it gave problems, as if it was damaged by dropping or impact the barrel strength was compromised. The action was also unusual, again something I don't believe was used on any other shotgun, namely it had a Williams-design floating chamber, somewhat similar in principle to that of the Remington 550 semiauto .22 rifle. It wasn't a marketing success. I have seen only a few of them, and those had very high price tags. Again, probably only ardent Winchester shotgun collectors prize them highly.