Don't suppose it has DBP or DRP engraved anywhere?
I recall reading somewhere in an article about MPP and Wray (by Colin Glanfield?) about it supposedly not being very clear where Wray/ MPP had got their hands on the Compurs when there was a severe shortage of shutters in the UK under the export-or-die austerity conditions of the time.
The other possible conjecture I have is that they were assembled out of parts Deckel/ Gauthier had on hand as West Germany dug itself out of the wreckage and that the S/N was simply whatever was on the casings in the parts stores of what was not an especially widely used shutter size (I'd like to know the production rates compared to the #1 and the smallest Compound). The BIOS report on Deckel makes it clear that the level of destruction (and effective cessation of shutter production in 1941) was such that the shutters would need to be retooled (40-50 skilled personnel and about a year is the timescale quoted) - and given that it's probably highly likely that the decision to go to rim-set was taken at that point, I cannot see the lowest selling Compur type shutter being completely retooled twice in 5 years - as opposed to the #00, #0, #1 not going through those iterations - thus I suspect old stock/ remanufactured stock.
Or, they were 'acquired' from Voigtländer in Braunschweig as that was in the British Sector - the BIOS report on Voigtländer indicates that there were "70,000 Prontor and Compur shutters in stock, of which 40,000 are reckoned to be serviceable" - it would not surprise me if, like the Graflex metalwork on the MPP Micropress, the shutters had arrived as 'spares' or some form of CKD kit.
For whatever reason, I'd never clocked the 184 Wray as being in a Compur II, probably because all the ones I'd seen in passing were in rim-set shutters.
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