As for No8. It is from 1931 and the original article doesn't mention a word on its chassis: THERE seems to be no end to the ingenuity of advertising men; they pop up everywhere with devices that attract attention by their novelty and ingenuity. An outstanding case in point is that of a Berlin advertising man who has rigged up a novel contrivance on an automobile that creates widespread gaping as it travels through the streets of Berlin. The car, shown in the photo at the left, has mounted on it a powerful loud speaker in the form of a huge drum, on the heads of which are painted the actors of the feature attraction. Announcements, music, etc., are furnished by a gramaphone hooked to the speaker. At night, the attractiveness of the device is accentuated by means of vari-colored lights arranged inside the drum. The driver operates the speaker.
