In this Tuesday, May 8, 2018 photo, imaging technician Greg Doolittle holds a moche horizontal knife from Peru at Valley Inspection Service in Allentown, Pa. Doolittle has been performing non-destructive high power x-ray imaging to study 100 Peruvian objects that are owned by a private collector in New York City. The work is a joint research study organized by retired Lehigh University professor Michael Notis, professor Aaron Shugar of Buffalo State University, and by Dr. Dong Ning Wang, an adjunct professor at Lehigh. (Harry Fisher/The Morning Call via AP)
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