The "Son" tang stamps are all very rare because another son was
born after a short time and the tangs evolved into "Sons".
This stamp is an example. Do not assume that this is the only valid stamp from this era.
Your stamp may have the same or similar information but still be a different stamp. Check closely. If you have a different stamp from this era, please send knifedb.com clear digital pictures of your tang stamp(and knife)to become part of this historical record. Become a Contributor, and add your name to Case history.