Reference Books on Watches - $10 (Apache Junction)

My father was a Graduate Gemologist, jewelry designer/maker, watch collector -- an all-around creative man.
For years, he and my mother had a nice jewelry store and gallery in the fashionable 5th Avenue Shops in Old Town Scottsdale.
I'm selling many of his belongings for my mother.
Most of dad's books dealt with gemology and jewelry, and all but these last three have been sold.
$10 for all three of these books.
Sorry, but we have no watches for sale.
I suspect he used these books as appraisal tools.
You're welcome to come over any day of the week during the hours of 12:00 - 6:00.
My wife and I work from home but one of us will most likely be able to get away from our computers to take an afternoon work break and show these to you.
Thanks for looking.