Thought this pole and the other like it had glass when I first saw them on my last visit. Wasn't sure there wasn't until I uploaed from my camers. Don't know what the U numbers would be on these either. Do you? Think they are the porcellian roan helmets. Right or wrong? Also, Do you know what those metal things are under the lower crossarm and what they are for? There's on on each side. Never saw anything like those before.