Hi Steve,
Sorry, I didn't realize that I keep alluding to the Peltier papers from the safe, I thought that was Galen. I do not have permission to post any of the paperwork here or anywhere else, but I have done so here on occasion.
Yes, I've learned a lot from the papers, and Gino, and many others. The urn is covered with 3/4" to one inch marble halfs and is dated 1931, but several important marbles are not presented on it, and I would guess that the citrus marbles came after 1931. I have never seen a 3/4" one. They are a complicated marble, and I would surmise that they were made for a very short time.
thank you for your concern.
mike b.