There sure were BG-42 Vanguards, Soleil, however they were green handled Master Series 192s from the '98 run of such. Now- sometimes blades are left over and get a typical handle or something more mundane than the special run when it ceases. PERHAPS a BG blade got a regular handle and shipped as a production 192 or the lunchbox senario could be at play. Once in a while you will find a Buck with a mirror polished blade and a regular handle as in the above. I have a couple of 119s that are very Special (pun intended) with phenolic or laminated birch and were sold as plain-janes. It happens. Without seeing the Vanguard in question....... go find it and buy it!
What would be wrong with a BG-bladed 192?
Dave