William Henry Model SO4-R – Early Production Folding Knife
This is a genuine William Henry SO4-R, an early stainless-frame folding knife produced before William Henry shifted toward jeweled button-lock art knives. These early SO-series models are increasingly collectible and difficult to find complete.
Specifications:
Model: SO4-R
Blade steel: VG-10
Hardness: 59 HRC
Blade length: approx. 2.75 inches
Finish: Satin
Lock: Liner lock
Opening: Thumb stud
Handle: 420J2 stainless steel
Inlay: Cocobolo
Washers: Teflon bushings
Fasteners: Stainless Torx
Made in USA (small-batch production)
Condition: Knife is in very good condition. Blade shows light storage spotting consistent with age. No cracks, chips, or abuse. Action is smooth, lockup is solid, and centering is good. Cocobolo inlay is clean and intact.
Includes original William Henry box and paperwork, which adds significant collector value.
This model is discontinued and represents William Henry’s early functional luxury knives rather than later jewelry-focused pieces.
Please review all photos carefully — the knife shown is the exact knife you will receive.