Translation of the front plaque:

"The most important thing is not to kill and not to demand." -- A. I. Levibek.

At the top, center of the card,
the word "postcard" was written
 in Russian, French and Polish.
Date February 14, 1920.

On the right side (in Hebrew?):
"For eternal memory to the beauty,
Your devoted
Szejna Kayman."

On the left side (in Hebrew?):
"My wish from me to you
Which comes from my soul,
You should find on your life's journey,
Love, friendship and comfort."

Translation of the front plaque:

(four lines in Hebrew,
by Haim Nachman Bialik):

"Eli Sheva, my sun high above,
My soul will not be the same
I decided to be grateful to God."

On the back of the photocard, in Russian:

"From me for eternal memory."

Perhaps the name is H. Gazar.

For S. Kajman.

On the front plaque, in Hebrew:

"People are not only members of one people, but also of one belief."

On the back of the card:

On the left in Russian:

"Let your life be like a stream covered
with pink flowers, and let hope, faith
and love always live close, next to you."

Diagonally on top in Russian:

"For your memory (or, for you to remember)"

On the right in Polish:

"...... Kajman."