[Collins] Collins Aviation Catalog

[antqradio at sbcglobal.net]

Does anyone have the above that is earlier then the 1959 catalog available at www.collinsradio.org?  

The 180L-2 or 3 antenna tuner appears to be designed with the 618S-1 transceiver in mind.  What year and month were these tuners and the 618S-1 first available?  I guess it is around 1955 or 56 but I can't find any hard evidence.  Perhaps the "Proceedings of the IRE" ad sections would help but I don't have any issues before 1958.
Jim