I have actually been looking at this pen since I spied it on Brian Gray's photostream from the LA Pen Show.
The pen in Maki-e on a Stipula Etruria base. It is engraved Allian Pens which is another name for PensPlus.
Allian always make this pens as limited editions. This one happens to be #9 of a total of 10 pens available.
It has a lovely fine 14kt nib.