Hi,
my second-hand Essence was bought privately in Bremen / Germany last year. Unfortunately without the papers. The top wood seems to be Tulip Wood.As you can see in the photos, it has Europa / Roque electronics and a Europa headstock.
I would like to know everything that is known about the bass. 
The bass sounds really fantastic.  Just as good as my two MK Signatures. Originally I wanted to convert it to a fretless after I bought it. But it sounds too good as it is.
Now I've actually bought another Essence in Lisbon / Portugal, which is currently at the luthier's to be converted into a fretless.
Thx for your help
Godehard Nave

This was sold in 2018 and details posted on the club. I'll paste details here for reference.

Here's the details from the instrument file:

top: Tulipwood
accent: Maple pinstripe
body: Mahogany
neck: 5-peice Maple with 4 Walnut pinstripes
scale: 34" long
fingerboard: Ebony
inlays: none
pickups: MXY56
electronics: Europa
originally made for: Kenman Company, Switzerland
birthday: December 2, 1999

Tulipwood is very hard to get these days in wide widths - most of the basses we made with Tulipwood are Essence models because they are the most narrow body shape we offer. It's a small tree, and rarely exceeds 30 foot height or 1 foot diameter. As a true Rosewood, I don't think we'll be seeing vast quantities coming available any time soon as the genus Dalbergia is all on at least Appendix II of CITES.

Many Thanks for your work, Mica.