World War II: 50 Rpf. Special Delivery Fee to Belgium

Luxemburg, 3 Oct 1941    Censored:  C22 [Cologne]   To Brussels, Belgium With Mixed franking: 6 Rpf. Hitler-head 50 Rpf. Hindenburg

During the World War II occupation, letters and postcards from Luxembourg to Belgium were treated preferentially, with the Reich domestic 12 Rpf. letter rate and 6 Rpf. postcard rate applying. (In contrast, mail to neighboring France was charged the 25 Rpf. foreign letter and 15 Rpf. postcard rate.)

However, the special delivery fee to Belgium was 50 Rpf.—the fee charged for foreign mail, not the 40 Rpf. Reich domestic special delivery fee.

The commercial postcard shown above shows the Belgian preferential 6 Rpf. postcard rate and the non-preferential 50 Rpf. special delivery fee.

I also like the corner card: 

Antony Steinbach

Luxemburg-Bahnhof
Hochfeine glanzlacke
[fine gloss paint]