[schwarze-man]

Well,
No takers on the 8-digit serial number dates?
OK, I can do one to illustrate. How about, 00706308.
Here is the 007 8-digit code id:

"Daimler-Benz Motoren GmbH (Genshagen Kreis Teltow)
Factory code hsq
Engine serial numbers:
00700001
First in data 00700207. Last in data 00711041. Production data 11,200.
Series started estimate 5/43, Finished 10/44."


Here is the loss report from the data for 00706308:

"10/10/44. 9.JG52. Bf 109 G-6. 440576. White 8. Motor 00706308."

So we can refer to the BIOS report and the monthly production figures for DB605 at Genshagen 8-digit codes produced between 5/43 and 10/44.
These are:
5/43-500. 6/43-566. 7/43-469. 8/43-359. 9/43-459. 10/43-578. 11/43-390. 12/43-587. 1/44-500. 2/44-640. 3/44-730. 4/44-862. 5/44-851. 6/44-862. 7/44-1040. 8/44-450. 9/44-700. 10/44-410.

So, starting with 00700001 on 01/05/43, we can add the months' output to get 5778 at end 3/44. Dividing the production in 4/44 by 30 days gives just under 29 engines per day, giving another 19 days to add to reach 00706308 and therefore a production date of 19/4/44.
Also, to compare the other way, working back from the completion of production at end 10/44 with 11200 as the estimated final production number, subtracting the monthly production figures we get down to 6887 at the beginning 5/44. Again allowing the 29 a day we get another 20 days back to reach 06308 so, a production date of 10/4/44.
Well, that is the limit of the accuracy here, between the 10th and the 19th of April 1944.
Now, it would be possible to fudge these figures by manipulating the start and finish dates of production and/or the estimated production figures but, this has not been done. These are pure figures. The production quantities are from the BIOS reports, the start and finish dates are a partly from production data and the loss reports data.

Cheers

SM