Heinrich Wohlgemuth’s death certificate and info about his bank

We learned that Heinrich Wohlgemuth died in 1917 from Hilda's affidavit. But we did not have his actual death certificate until it showed up on Ancestry courtesy of the Berlin Landesarchiv. Here it is. The date is actually October 21, 1918. His death was reported by Wilhelm Cohn. Born in Preußisch Stargard. Living at the same address as at the time of his mother's death in 1910. I can't read the cause of death.