Thanks Simon !
Very very interesting your last comments!
Even more if i quote one of your reply in the other tread about Leck's He 162:
"
April 1st 1945 W.Nr. 310018 should be flown by Uffz. Dobrat from Bernburg to Unterschlauenbach... (source Eric Mombeek, Reichsverteidigung Die Geschichte des Jagdgeschwaders 1 "Oesau")"
So i dig a little...
W.Green 1976, E.Brown 1977, A.Price, >> nothing
Smith & Creeck (monogram close-up 1986) >> are probably among the first who offer us a W.Nr ranging factory by factory and wrongly stated 300001-300027 for Junker Bernburg and 310001-310018 for Mittelwerke/Nordhausen
Then the error was repeated (D.Myhra, M.Griehl, MBI monography...)
Finally the error is corrected by J.C.Mermet, 2002: "W.Nr. were in the 300... range for Mittelwerke and in the 310... range for the Junker factory"
It's always amazing to see how wanting to correct what was though to be an evident typo finaly make another trust appear
Time to correct personnal notes and main sources books
Olivier