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On the sign:
יד למחתרות סמל העיר פתח תקווה סמל ארגון חברי ההגנה בפ"ת
מרכז קישור כאן היתה הכריכיה של דוד אורבך. שנודע כ"דוד הכורך". דוד היה פעיל "הגנה" ונודע כחובש בשרות הרפואי. הכריכיה שימשה מרכז להעברת "פקודות קשר".
Translation of the text on the sign: Memorial to the Undergrounds The emblem of the city of Petah Tikva The emblem of the Haganah organization in Petah Tikva
Communication Center Here was David Auerbachs bookbindery. Known as "David the Binder." David was a "Haganah " activist and was known as a medic in the medical service. The bookbindery served as a center for transmitting "contact commands."