Only peripherally related here, but I have a couple of Western Buckmasters fixed blades by Camillus (based on stamps). Of the ones I have seen, some just say "WESTERN" over USA Rx where "x" is the model number (2,14,16,18). Others have Camillus over Western over USA with no model number. Some of the profiles look like Westerns (the R2 looks like a rubber handled W84). One non-model number looks like like a Schrade 158OT. Some leather handled fixed blade Camillus Buckmasters have model numbers beginning with or without the BM. The Buckmaster BM66 just has a 66 (like the camillus produced Western L66s of the mid-90s. A folder that looks just like a Buck 110 clone is the BM9. Some Buckmaster folders have a Camillus over New York over USA stamp, with no model number. I saw one folder that just had Camillus as a stamp w/ nothing else visible.
This is all to be able to say that a Buckmaster knife could be a clone of any knife that Camillus made either under a name they owned, e.g., Western, or someone they just made knives for under contract. So if a Buckmaster looks like some other knife, it probably is that other knife, just in Buckmaster "clothes".