You don’t see many of these (possibly a reason for that!).   It’s a Bespoke Upright Bass hand built in the UK.   I picked this up recently and it’s really interesting! The woods and construction are fascinating and the frame is a step up from the normal EUB.    It’s a full size bridge which is very rare on an EUB. The notches are quite deeply cut and the nut is a bit crude. It’s a quirky instrument that will, if you have a spanner, come apart in about 5 minutes, s