Interesting post card - early advertising

[Terry Bond]

I recently added a couple of different versions of these cards to my collection. They advertise Cafe Martin in New York City. I'm now up to six different cards showing early automotive scenes. The artwork is great, and the first card especially is interesting as I've got a full sized lithograph with the same image but no advertising on it. These cares are pre 1908, also known as undivided back cards. I believe 1907 and earlier cards were all printed restricting the back of the card to address only. That was law at the time, so any message that needed to be sent along with the card was written on the front. By 1908 the law had changed and companies began printing cards with half the back for the address and half for a message. Anybody else collect these? Wonder how many different automobile themed cards are in this advertising "set."

Terry