Currently on ebay is a knife and RMK sheath described as follows:

"BRITISH COMMANDO FIGHTING KNIFE AND SUPER RARE RANDALL SHEATH.Excellent condition. Knife maker  J. Nowill & Sons, crossguard below is stamped with the Broad Arrow and a Diamond marking. Knife is post war marked with Crossed Keys trademark. Super rare RANDALL sheath-marked B C (British Commando),produced 1954-1972".

The stampings on the reverse of the JRB sheath for a Model 10-7" appear to be: (1) an RMK stamp; (on top of) a Johnson's Leather stamp; (c) "B C"' and (d) "10 7".

Since I have not seen a 'double stamped' sheath before, and have not seen the "B C" stamp before, I am turning to the vastly more experienced RMK collectors here for information.

How unusual is the RMK over Johnson's sheath stamps? Has anyone seen the "B C" stamp on an RMK sheath before? Who stamped the sheath "B C" (done by Mr. Johnson or elsewhere)? Does "B C" signify "British Commando"; if not, what does it signify?