Dust off your gardening catalogs and your memories. I just saw this planter down in a garden at the Smithsonian last weekend. Several people I know have remarked on my picture and would like to know where it came from. I just sent an e-mail to the gardens dept at the SI asking about it but I thought I would put it out there to all the Dave's Gardeners as well.
I believe it to be cast stone, though medieval in appearance, I think it's a modern piece. It had a tag, small but illegible on the far side away from the camera. I don't think the SI would put a real medieval piece out there but who knows. They probably have plenty of that stuff hanging around in warehouses all about DC. It is a museum, after all.
The garden it's in was designed and gifted to the SI by Enid Haupt. She's the lady that rescued the conservatory at the NYBG. This is all I know for now.
Please let me know if and where you have seen another like it. Yes, those are the 12 apostles.
Looks like something bound for an antique shop or a home demolition company, which we have close by. It is called the junkyard with a personality. If it cools down a bit, I will take a ride over there.
The smithsonian, whose urn this is, replied that it is not an antique, just that they purchased it from a company in Pennsylvania a long time ago. The company has not responded to my inquiry as to whether or not they still have them, so I am guessing they don't.