The Girl in the Telltale Bikini, by Patrick Morgan
Another Sexy spy novel, series billed as Operation Hang Ten. But was there more than one book in the series? This is the only copy I've ever seen, and it's in near mint condition. The only flaw is a pencil price that has been erased on page 1. You can probably do it better with a soft gum eraser yourself, if you want. (I wouldn't bother.)
McFadden, 1971 1st Printing - and quite RARE!