Hi -
Thanks for your responses.
I am slowing working my way through the Tom Kuhn and Tom Kuhn-BC yoyos.
I am using eBay completed sales and Hall’s Yoyo Museum site (http://www.yoyomuseum.com/museum_view.php) for the more rare yoyos.
Are the values, when listed at the Yoyo Museum close to accurate? I have found Museum’s description of design & production history in the YoYo Museum’s fascinating.
For a couple potential grins, I have posted a picture of what i believe to be a 2nd (or defective) Mandala.
Best
Scot