Thank you, Martin, but there's really no mystery around the Fw 200 C-1 & C-2.
The 'Kennblatt für das Flugzeugmuster Fw 200 C1 und C-2' from 1941 can be found at Kew in the UK National Archives on file AIR 40 154 (This comprises 19 pages plus a cover page. There are two not quite complete sets on file: one is missing the cover page and page 1, and the other is complete except for page 3. So everything is in there with a bit of dotting backwards and forwards.) This document includes a Ladeplan and provides a very detailed description of the equipment and performance of both sub-types.
Not many Kennblätter seem to have survived for any types. However, if this is a typical example it is even more useful as a technical description than the Flugzeug Handbuch.
Plus, on the Luftwaffe Cockpits website at
www.DeutscheLuftwaffe.de and available for download by all are:
Fw 200 C-1 und C-2 Kurzbetriebsanleitung Stand 15-Apr-1940
Fw 200 C1 und C2 Flugzeughandbuch June 1940
AFAIK the C-1 & C-2 gaps remaining are around the fates of individual aircraft with events explicitly linked to a specific W.Nr. However, my interest stops at the point that the existence of an individal aircraft is definitively confirmed. For me, anything more is merely a bonus. Hence my aim is not to reconstruct the individual history of each aircraft, only to provide as secure a foundation as is now possible, on which such a structure could be built (by someone else).
Some of those missing fates may be deduced by digging into any aircraft repair records surviving in the FoWu company papers and any as yet undiscovered Änderungsweisungen (Change Notices). One of the latter is posted at
https://fw200-restaurierung-bremen.d...werknummer-00/
This is Änderungsweisung Nr. 12 of 18-Aug-41. This confirms the survival to that point of:
Fw 200 C-1 W.Nr. 0008, 0012 & 0014
Fw 200 C-2 W.Nr. 0016, 0017, 0018, 0022 & 0023.
Fw 200 D-2a W.Nr. 0019
Fw 200 D-2 W.Nr. 0021
plus a bunch of C-3s beginning with W.Nr. 0025, 0026, 0030, 0031, 0032
So finding the preceding eleven Änderungsweisungen could be most revealing as to which individual aircraft actually survived to which dates.
After that it is going to be a matter of serendipity or resorting to the ouija board - according to personal preference and degree of historical training. :-)
If you need something more please feel free to PM me.