Thumbnail Filmstrip of Bobbins - Style M - Size 138 - Pelt (Coats) - Nylon - Paper Sides - Box of 72 Images
Style M prewound sewing machine bobbins Size 138 / Tex 135 color Pelt (Star Coats). They are manufactured by Nylon, made from Nylon and come in a Box of 72 (Half-Gross)