What does this say?

[Lenoirstreetguy]

Here's a Siemens special issue,,an experimental record I think it says and I'm very curious as to the rest of the inscription. ( Norman??) My German is rudimentary to say the least. This has to be post war, and the sound is as one would expect, good but nothing amazing ; in fact not as good as the sides with Richard Strauss conducting that were done in 1942.
Jim

[Viva-Tonal]

MASTERCOURSE OF DEUTSCHE GRAMMOPHON COMPANY G M B H

SIEMENS SPECIAL EXPERIMENTAL RECORDING AFTER THE SILVER-PROCEDURE OF ELECTRO-ACOUSTIC RESEARCH-LABORITORIUMS

(Around the bottom) The right to broadcast remains reserved.

[gramophoneshane]

COOL!!!