June 10th is National Ballpoint Pen Day! On June 10, 1943, the patent for a ballpoint pen was filed by Hungarian brothers László and Gyoorgy Bíró. For today, Jared literally put a pen to paper for this video when he letterpress printed a small photo engraving. #onthisday #todayinhistory #nationalballpointpenday #ballpointpen #fountainpen #art #sachistorymuseum #museum #reels #printing #letterpress | Sacramento History Museum