ATG Junkers Ju 52 factory numbers versus Werknummern

[Richard T Eger]

From 12 O'Clock High!:

Mikael Olrog
W.Nr. of licensbuilt Junkers a/c at ATG
Wed Nov 3, 2024 18:51
213.89.147.74

Hi,

I've understood that some factories building aircraft on license used their own serial number sequences for internal documents while using the official W.Nr. issued by the licensegiving company for official/external documentation.

An example is ATG which built Junkers W 34, Ju 52 and Ju 86 on license.

ATG used internal serial numbers for the W 34 in the 10XX range, for the Ju 52 in the 13XX range and for the Ju 86 in the 12XX range.

My question is if anyone knows how ATGs serial number matched with the "official" W.Nr. issued by Junkers.

Would for example Ju 86 W.Nr. 0865002 have ATG serial number 1202 - which is a logical connection. Can this be confirmed?

Best wishes
/mike