This form of helmet was widely used during the thirty years war and english civil war and was commonly known as a 39zischagge39 in germany and a 39horseman39s pot39 or 39three barred pot39 in britain the term 39lobster tailed pot39 is widely used in modern scholarship it was used by cavalry on both sides of the english civil war including oliver cromwell39s ironside cavalry the common misconception of cavaliers wearing plumed wide brimmed hats whilst the roundhea