Today in Postal History

This image of the reverse of a cover is all I have for today.
Let me tell you what I have learned about it.

First, it was posted in the Bombay.
There are three barely legible CDS for BOMBAY - FOREIGN.

The receiver dated June 29 is from Albersdorf, Holstein, the apparent destination of the cover.
Albersdorf is about 30 km south of Schleswig.
The name Luftkurort describes Albersdorf as an 'air health resort' or outdoor spa.*

Stahlquelle is believed to be the name of a local mineral water and
the term Weite Waldungen suggest that they also had expanses of forest.*
Sounds like a typical Chamber of Commerce slogan cancel.

The cover is franked with 1935 Silver Jubilee stamps.
There are two 3½a dull ultramarine and black portraying the Golden Temple
at Amritsar and one 2½a orange and black of the Taj Mahal at Agra (SG 245 and 244).

I would appreciate any further information anyone can provide.

*Thanks to David Benson for his identification of the town of Albersdorf.
There is also an Algersdorf which is in Austria near Graz.
Thanks, too, to Roland Klinger for his suggestions on the location and the translation of the CDS.