[INM@RLM]

One necessary update to my post #7 above.

With some additional WNr. data that has been kindly shared, I now need to amend the statement that read "WNr. 400201 to 400275 = 75 from Arbeitsgemeinschaft Roland".

That was far too prescriptive anyway since - as confirmed by CIOS Report No.330, June1945 - Bremen-Hamburg Area - although we only have a cumulative Fw 190 D-9 delivery figure for this plant at end 31-Jan-45, a thin stream of Fw 190 D-9 deliveries from Nordenham continued up to war's end.

The better statement is: WNr. 400201 to around or at least 400320 (highest known record currently is for WNr. 400316) in a continuing sequence described as from Arbeitsgemeinschaft Roland but actually originating from Weser Nordenham.

The WFG Lemwerder sequence was almost certainly also a continuing sequence rather than a block with hard boundaries, but for the moment there seems little possibility of improving on that statement.

One can see why German delivery reporting generally did not employ the term Arb.Gem. Delivery reporting needed to distinguish performance by individual site and Arbeitsgemeinschaft Roland was by its inherent structure a multi-site umbrella organization.