Yeah it is a Kohlert-y brace, I suppose if one were interested they can cross reference with Kohlert neck pics and see if that's just coincidental or if the neck is unoriginal....hard to say a neck tube is identical unless one can measure the two samples in question, but it can be eyeballed somewhat...other things to look for are: shape of the ferrule on the tenon end; the configuration of the saddle and spring stop on the neck tube; and whether the key guide height and design/detailing matches.
...you are welcome, Peter, anytime you (or anyone else here) might come across a US listing "will not ship internationally", keep me in mind. I have done that for Cafe members before.