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A coupon or test coupon is a printed circuit board (PCB) used to test the quality of a printed wiring board (PWB) fabrication process. Test coupons are fabricated on the same panel as the PWBs, typically at the edges.
Alexander "Sanya" Moiseyevich Schapiro or Shapiro (in Russian: Александр "Саня" Моисеевич Шапиро; 1882 or 1883 – December 5, 1946) was a Russian anarcho-syndicalist activist. Born in southern Russia, Schapiro left Russia at an early age and spent most of his early activist years in London.