1960's Simplicity 4121 Vintage Sewing Pattern. Girls Skirt, Jacket And Blouse: Blouse has front button closing, collar and three quarter length set-in sleeves gathered to sleeve bands. Skirt has pressed or unpressed pleats, left side opening, elastic in back waistband and buttoned suspenders. Collarless jacket is below waist length and has front button closing. V.1 has long set-in sleeves and patch pockets. V.2 is sleeveless.