I have this really old post card my father had in Germany during the war. On the reverse at the bottom left of the post card there is a stamp that reads:

Marta Hoepffner
Fotowerks?ä?te
z. Zf. Hofheim/Ts.
Borngasse

Sorry I can't get all of the stamp some of the letters are worn. The post card has a portrait of a women. I know Marta Hoepffner was a photographer and many of her werks are famous but I am not sure if this stamp is the name of the company that made the card and credit was given to Marta. In what information I have I did not see where Marta Hoepffner did portraits. However, during the war many wifes and sweethearts did have fotos taken of them to send to their husbands and lovers who were off fighting. Could this be one that was taken by Marta Hoepffner?

Vielen danke!

Here are some images of the card.

It says Fotowerkstätte.
Here is a a picture of her:
http://www.elvira-von-seydlitz.de/hoepffner-schoffers/a4a.gif
Marta worked for about 50 years and stopped in the 80s.  She did have her second studio in Hofheim/Taunus, so I would assume this photo was taken by her or her staff.

The forum software here is a joke. I lost my text two times because of session time outs during my research. OK. Here's another try written in an external editor.

Seems to be a business rubber stamp with a full address of a lab Marta had in Hofheim.

For me this is the full text:

Marta Hoepffner
Fotowerkstätte
z. Zt. Hofheim/Ts.
Borngasse

Fotowerkstätte (Fotowerkstaette without the German umlauts) is an old term for a photo lab. Today we call it "Fotowerkstatt" or simple "Fotograf". "z. Zt." is short for "zur Zeit" and means "at the moment residing at".

A study of these links

http://www.hoepffner-preis.de/mh_bio.htm
http://www.hoepffner-preis.de/fotoschule.htm

shows that she had to move from Frankfurt/Main in 1944 to Hofheim and give up her old lab. And she may also did portraits in Hofheim.

One thing is strange to me. The woman looks like herself. The face morph and the eyes are similar to this:

http://www.elvira-von-seydlitz.de/hoepffner-schoffers/a4a.gif (1941)
http://www.hoepffner-preis.de/bilder/start_portrait.jpg (maybe 20 years after the end of war)

I don't know if Marta was such a famous person at the end of war. Maybe she sold postcards of German Fräuleins to GIs and used herself as a model.

Maybe this helps a bit.

" Marta Hoepffner bildete bereits 1943 Lehrlinge in ihrem Fotoatelier in Frankfurt am Main aus. Ein Jahr später wurde es bei einem Bombenangriff zerstört. Daraufhin siedelte sie nach Hofheim am Taunus über, wohin sie schon vorher ihr Fotoarchiv und die technische Ausrüstung ausgelagert hatte. Hier eröffnete sie ein neues Fotostudio."

Yes, I see the reason she moved to the yard home at Hofhiem/Taunus from Frankurt/Main because of a direct hit most likely from allied bombings. I have sent an email on the contact page for more information.

Many thanks to all of you for your help!!

Micheál