Ju 52 markings on the tail??

[Seaplanes]

IV./K.G.z.b.V. 1 was a part of K.G.z.b.V. "S" during the African supply operations December 1942 to May 1943, together with K.Gr.z.b.V. 600.
The unit codes and Tactical codes of IV./K.G.z.b.V. 1 were:
Stab unit code 1Z+ -F (this because the Savoia-Staffel carried the unit code 1Z+ -D). Tactical code D - S + individual letter.
13. Staffel unit code 1Z+ -X, tactical code D 1 + individual letter.
14. Staffel unit code 1Z+ -Y, tactical code D 2 + individual letter.
15. Staffel unit code 1Z+ -Z, tactical code D 3 + individual letter.
16. Staffel unit code 1Z+ -Q, tactical code D 4 + individual letter.
On April 6, 1943, the Ju 52 aircraft of 16./K.G.z.b.V. 1 were the following:
1Z+AQ W.Nr. 7297 (St.kz. DG+SK)
1Z+BQ W.Nr. 5342 (St.kz. VD+XB)
1Z+CQ W.Nr. 3203 (St.kz. PD+KM)
1Z+DQ W.Nr. 5118 (St.kz. BD+PP)
1Z+EQ W.Nr. 6038 (St.kz. GT+AD)
1Z+FQ W.Nr. 6322 (St.kz. TE+HY)
1Z+GQ W.Nr. 3301 (St.kz. KI+LJ)
1Z+HQ W.Nr. 7299 (St.kz. DG+SM)
1Z+IQ W.Nr. 6851 (St.kz. VK+AV)
1Z+JQ W.Nr. 5642 (St.kz. CR+NO)
1Z+LQ W.Nr. 5454 (St.kz. KJ+AH)
1Z+MQ W.Nr. 6682 (St.kz. CK+BA)
Unfortunately, the source did not give the tactical codes, but the individual aircraft letters of the unit code should match that of the tactical code. Please remember that units suffered heavy losses during these opetrations. Consequently, several aircraft could have carried the same unit and tactical codes over time.