Here is a really cool item I bought last week on Ebay. This is a small, folded flyer for an independent movie theater that was given out for advertising purposes--it had information about upcoming movies with dates. I'm sure these were printed by the hundreds. It measures 8 1/2" x 5 1/2", and is double sided. Here's the front side:
Oh yes, yes indeed--for four glorious days, you could see KING OF THE MONSTERS! So far, this is the only 1956 item I own for the first Godzilla film, but here's hoping I live long enough to score the poster one of these days!