B5 f/s

[grip3846]

Hi,
I picked up a 2nd pattern F/S knife with machine finished blade and no etching,FS and Wilkinsons ,it is marked B5 on the crossguard,now I have B2's but not seen a B5 before,or have I just not been looking hard enough?
Regards,Ivan

[seebee1]

Can you post an image of the stamping Ivan, seems it could just be a poor marking of the 2, never heard of a 5 before. Just wonder if the 2 is stamped upside down and in reverse? regards, Clive.