Quite correct. Few people know however Ju 88 production had considerable effort in early years in making parts interchangeable. Even on assembly in the beginning the parts numbers (
Serie Nr.) got mixed. Even the "so called fixed W.Nr.s" were changed, in order to deliver correct W.Nr. on time, and planes were almost never delivered in nummerical order. (New
W.Nr.s replacing rejected airframes)
Abowe (#16) is assuming part was used in cronological order, but as this Line Number was made quite late in 1944, it rater unlikely might have been salvaged (recycled) and fitted to other plane. We have no idea over its actual useage., so assume it stayed with same airframe thrughout.
But what were the ATG Line Numbers.
http://www.wwiiaircraftphotos.com/LCBW12/Ju188_2f-s.jpg
This here shows Ju 188 A-3(LT) Search Radar equipped Torpedo Bomber W.Nr. 19
0339 (Line Number
5488 on tail end of fuselage) code
1H+KS of III/KG 26 (from Norway) surrendered at Copenhagen Kastrup, after 8 May 1945. The ATG
Line numbers were not continious, indicating to me some (first) might have been updated from normal A-4 airframes (which ATG was still producing at that time) but appear near continious after 5201 to just past 5812. Combined ATG and Siebel output be about half of Ju 188 production (JFM 601, ATG 655*) but many were lost in works.