Member from that period, the post card is not related in any way to him, it was taped to the case, looks like the battery stayed in and corroded the connector quite severely. Connector needs replacement, can not say to the overall condition.
Must sell "untested" antennas and phones appear to be quite good, the whip antenna has a good stretch cable and works well, canvas is good condition, needs cleaning. The item "VIETNAM RT 175 PRC 9 RECEIVER TRANSMITTER FIELD PHONE RADIO BACKPACK, RCA" is in sale since Monday, October 1, 2018. This item is in the category "Collectibles\Militaria\Korea (1950-53)\Original Period Items".The seller is "lawrenchancoc8" and is located in Saco, Maine. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, Sweden, South Korea, Indonesia, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica.