Special Tax on Dealers in Manufactured Tobacco [Cigars] Series of 1873, 1874, 1875, 1877, 1878, 1879, 1880, 1881, 1882, 1883, 1887 Examination of proof sheets in the National Postal Museum archives confirmed that there were no plate numbers engraved on these early issues
stricter for the ultrafine tar particles in cigarette smoke
Over time, it may lead to coughing, shortness of breath, and other respiratory issues
Beyond the event itself, more than 90% of Pittcon's net proceeds support science education and outreach initiatives locally and globally, funding scholarships, grants, STEM programs, laboratory improvements, and other efforts that strengthen communities and expand access to science