They might look cool but, many newer bookshelf speakers will sound better. No highs above 12-15khz and not much speed-IN MY OPINION.
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A pair in nice condition sold recently for $790 on eBay, item no. 380156911074. The listing includes lots of nice photos.
A 1991 Orion bluebook I have indicates that they originally cost $666, and were sold from 1964 to 1968. That bluebook indicates a 1991 value of $64, but their values for 1950's and 1960's vintage equipment are in many cases ridiculously low.
Hope that helps,