I wandered into a small antique shop in Miami, OK, last week while on vacation. I bought a 1930 Cooper OC gold tone in good condition for the whopping huge price of $8.95. This is a razor produced before Cooper went to the standard DE blade center post, it has a diamond shaped center post which requires a special blade. I did force a modern blade on to the post but I didn't like the idea so it will become a wall-hanger, for show only. If I can figure out how it's done I'll attempt to post a photo.