It is known that Bo Randall shipped some knives to at least one Midwest retailer during war years without sheathes. The sheath pictured with your knife is exactly what you would expect to see paired with it if supplied by someone other than Bo. When the blade show is over this weekend one of the salty old pros may be able to tell you more. Until then, don't discount the sheath, or do anything to either piece, no matter how tempting! It looks like a great historical find!