Just out of curiosity Halfuncial, if your friend has the ability to irradiate stuff, I would assume he or somewhere in his establishment he has the ability to measure for radiation. He must be a college worker/Xray tech/NDE worker or and this is my guess, a dentist. But if he can measure in a lead castle, radiation levels, get him to measure a piece of your comb. I would be curious as to the results. If he is up for it, get him to measure some old comb, this should have the highest value, and some bridge comb, this should have he lowest value as its newer. Maybe even measure a few dead bees eh.