Hi,
I've no idea about the neck plate and logo, I'm afraid, and I'd always assumed the bass was originally built that way. Also I've seen pics of other Haymans with perspex bridge covers etc but this one has never had them fitted, well at least there are no screw holes. I haven't sold over t'nternet before, so am concerned about entrusting this lovely instrument to the tender mercies of a courier. However........
Regards