Polyst-steen, tot weghneminghe van de vuyle vlecken des Cristalijnen brils ...: hier is noch by-ghevoeght een korte wederlegginghe van de voor-rede[n] gestelt voor het gepretendeerde boeck Castellij, geintituleert, Korte en duydelicke wederlegginghe, van 't gene door Meester Iohan Calvijn, tot beweringhe van de macht der overheyt, int straffen der ketteren, by-ghebracht wert, &c. 1614.
As the title page explains, this pamphlet records a series of attacks and counter-attacks between the Remonstrant and contra-Remonstrant factions. The title page includes a woodcut depicting a workshop to polish the lenses of spectacles. On the table are polishing stones; a pair of spectacles are on display above. Allegorically, this woodcut suggests that a pair of spectacles are ready to be cleaned of ugly spots by a polishing stone so that the wearer of these polished spectacles will no longer be deceived. The image of precision spectacles, or “eye-salve for the blind,” was used over and over by pamphleteers arguing their own particular points of view.