I believe there was only 3 of these markers that ever made it into the UK.
I owned 2 of them at one point, and still own the very first one that hit these shores.
Not sure where the other 2 have sold to now.
I thought there was 4 originally but maybe wrong... after searching the forum a couple traded hands back in 2013/2012 for 380/450... they might not even be in the UK anymore but worth looking