Q23: About German cities

In the Soviets, the first mentioned German city is Tempelhof (a space next to a temple...), where Tintin lands, before going to Berlin on foot.

Six other German cities are quoted, in 7 other titles.
Which cities, in which book, and on which page?

Actually one of them is not German any more; why?

1. Hamburg (Calculus Affair, p 13)
2. Jena (Shooting Star, p 14 & Object Moon p 50)
3. Potsdam (Black Island, p 54)
4. Frankfurt (Ottokar, p 17-18)
5. Lofer (Calculus Affair, p 23)
6. Köln (Black Island, p 2-3)
- - -

Lofer is actually an Austrian town which was annexed by Germany in WW2

Congratulations, your answer is almost complete (6 cities OK, but only 5 albums)!

Here is a clue to the 2 missing albums:
- Iena (3rd time)
- Hamburg (better than 'Hamburger Tage-blatt').

yamilah wrote: Hamburg (better than 'Hamburger Tage-blatt').

OK, Blue Lotus, page 18, right?

- Iena (3rd time)

...but I can't find this.

OK, Blue Lotus, page 18, right?
Yes!

Iena (3rd time) / I can't find this
Last clue: look in Explorers on the Moon!

Iena (3rd time) / I can't find this
Last clue: look in Explorers on the Moon!

Oh yes, page 46! I've been looking in this album several times but missed it before.

Congratulations, Mickael, I think you fully deserve the point!

Agreed, a well-deserved point to you Mikael, and your turn to give the next question.

Ed

a well-deserved point to you Mikael, and your turn to give the next question.

Ed

Thanks!
Well, I better start thinking then :-)