It sounds like you’re referring to a half set of Nickel Silver 17/64 fly rod ferrules that are New Old Stock (NOS). Here’s a breakdown of what this likely means:

Key Terms Explained:
1. Half Set Ferrules – Typically means one male and one female ferrule (as opposed to a full set, which might include multiple pairs for a multi-piece rod).
2. Nickel Silver – A durable alloy (copper, nickel, and zinc) commonly used in high-quality vintage ferrules due to its strength and corrosion resistance.
3. 17/64 – The ferrule size, measured in 64ths of an inch (≈ 6.75mm). This indicates the rod’s diameter where the ferrule fits.
4. Fly Rod Ferrules – Used to join sections of a split-cane or fiberglass fly rod.
5. NOS (New Old Stock) – Unused vintage inventory, possibly from an old tackle shop or manufacturer’s surplus.

Half Set Nickel Silver 17/64 Fly Rod Ferrule NOS

Potential Uses:
– Restoration – Perfect for repairing or restoring an older bamboo or fiberglass fly rod that originally used 17/64 ferrules.
– Custom Rod Building – If you’re crafting a traditional fly rod, these ferrules could be an authentic touch.
– Collectors’ Item – NOS vintage ferrules are sought after by fly-fishing enthusiasts and rod builders.

Where to Find/Buy:
If you’re looking to purchase or sell these ferrules, check:
– Specialty fishing forums (e.g., Fiberglass Flyrodders, Classic Fly Rod Forum)
– Online marketplaces (eBay, Etsy, or vintage tackle dealers)
– Rod-making suppliers (though NOS may be rare from mainstream sellers)

Would you like help identifying a specific rod model these might fit or advice on installation?