Is this receiver WE? I looks different than the ones I own. It feels thicker, and there is a grommet at the tip. The one on the left I believe to be WE. I'm not sure about the right one.
It certain does look like a Western receiver, and the patent dates I can make out, are correct insofar as W.E.'s registered patents. There is a collector in the U.S. who goes by the handle of "Phone Man Dave". Here is a link to his web site, and in particular, his page dealing with type 143 receivers. It provides a good picture of the various patent arrangements placed on the tops of the receiver shell. Have a look and compare yours to what he has displayed. I think you'll find yours to be a genuine receiver shell.
Link : http://www.phonemandave.net/5-143receivers.htm
Jeff Lamb
Cool! Great pictures. And I've never had caps that have had lettering either. Cool!
It is a WE receiver but made of composition (similar to 78 records) instead of hard rubber