Ze'ev Raban, colorful sketch (water-color, ink and pencil on wax paper) for emblem of "Nathan and Lina Straus Health Center, Jerusalem, [1929], designed in the shape of a key with an illustration of a snake. Instruction for making the emblem appear on the borders: "Gold, ivory and enamel". Leaf 14.5X7.5 cm pasted on cardboard. Ink stamps of Ze'ev Raban's workshop.