I have a copy of the book in paperback. Nessie seven years in search of the monster by Frank Searle, 1976, pub. by Coronet books, London. Some of his photos (I counted 20 last time I visited him) are reproduced in the book and I have scanned them in for you to see. Frank died in 2005 in obscurity but for his time on the loch he was a bit of a star and TV crews came to see him and tourists flocked. I will not go into the stories here about him,(will save that for my book, perhaps), but sufficient to say he could be quite aggressive if you accused him of faking the photos.
He could be charming whilst you agreed with him but it was best not to disagree with him within earshot.
In saying that, I have a soft spot for Frank as he was a character and somehow seemed to fit in with what was going on at the loch at the time.So here are some of the photos. See what you think.