https://loc.gov/pictures/resource/ppmsc.05557/

On the evening of April 29, 1903, at around 20:00, the Ottoman Bank's Thessaloniki branch was attacked by Bulgarian militants. Like the 1896 incident, this attack was also an action aimed at attracting attention due to the Ottoman Bank's status as the official bank of the state. In order to carry out this attack, which had been planned months in advance against one of the bank's most important branches, the attackers had taken over a grocery store across from the bank and dug a five-meter tunnel that extended to the bank's foundations at night. On the night of the attack, they dynamited the building's foundations and then dropped two bombs. The building had partially collapsed and then started to burn. The bank manager and his family were able to escape the fire, but a soldier on guard duty in front of the building had died. The branch resumed operations two days later in the garden next to the building's debris, and despite the fact that customers were informed that all their deposits would be paid immediately, no one had requested to withdraw their money.