Excerpt from a 1951 [[Eversharp]] advertisement [[:File:1951-05-Eversharp-Symphony.jpg|scanning]] for the lever filler system of the [[Symphony]] model called ''[[Positive Flip-Fill]]''. | Excerpt from a 1951 [[Eversharp]] advertisement [[:File:1951-05-Eversharp-Symphony.jpg|scanning]] for the lever filler system of the [[Symphony]] model called ''[[Positive Flip-Fill]]''. |