[Collins] Collins R-381A / LS-175/U speaker, Navy Type CZY-49583 speaker

[T. Chirhart]

Question for the group. I have a URR-23A cabinet with what I thought was
an R-388 installed, but may be a mil version of the 51J2. In searching
the net I find that the matching speaker is the LS-175/U. Does anyone
have one of these speakers or have a photo of one?  Interested in
locating a matching speaker for it. I understand that a Collins 270G3
was available that had a metal tag on top indicating that it belonged to
the receiver.

Also I have a Loudspeaker Assembly, black wrinkle finish, about 12H X
12W X 7D, TYPE CZY-49583 made by Allied Radio Corp for Navy Department
Bureau of Ships. Any idea what receiver(s) used this speaker?
Thanks
73
Tom