RF Connectors gold plated?

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Tried to download a couple of pictures of this board, but only see this one. Not very good with camera or download? Will try in the morning (sleep/coffee). These are large plug in type PCB'S (11 1/2" x 14") with gold fingers. They are loaded with IC's and for the most part, easy to remove (not soldered). Question: Grade of board? How many IC's should I remove? RF connectors gold plated? These came out of Medical Testing devices (Magnetic Imaging?) 1970's and early 80's. So far I have only removed the larger IC's that are ceramic and with gold pins. I have lots of these boards (150 Lbs. +), the one pictured is just one of many different types. Most have these RF connectors, all with gold fingers and same size. Would appreciate any recommendations and advice. Sorry about poor picture!