Butterick 6765; ca. 1953 (Reissued with the same number in the 1980s (see below); Men's and Boys' Cassock in Two Styles. Here are two authentically styled, perfect-fitting cassocks for men or boys. Deep inverted back pleats extend from waistline to floor. Sleeves are deeply cuffed. (A) Button-front cassock. (B) Asymmetric, snap front closing. The 1980s release of the 1950s pattern above.