"Rick" wrote in message
news

What is the difference between the "winged emblem" Collins radios and the
other kind ("round" emblem?)?

Apparently -- age when they were made

For what it is worth see The evolution of the Collins emblem URL:

http://k9ham.cargodog.net/collins.htm

And for further research -- it sez: For more information on the Round
Emblem transition, please see the 1998 March/April issue of the Collins
Journal.