Thanks Adri. Interesting¡ Thanks¡ But... could we get more information about the grounds to make such assertion?
Schnitger had renovated the existing instrument at Golzwarden in 1697/98 at a cost price and rebuilt a sumptuous housing. He received the promise that he would be immortalized in the church with a pictorial representation. A corresponding picture, however, could not yet be assigned to him without doubt.
(from the link, Google translation).
In the absence of good evidence, that man could be also the dean of the church, the music director or someone else. And the back of the organist shown in the other link could also be Schnitger´s back, immortalized¡