Not a how to but an inspiration for sewing a collar.
This is J | under the collar | thisisj.com | floral collar | Gucci details
Different Types of Collars - FASHION SIZZLE BLOG
1930s Art Deco Collars Pattern DuBarry 812B Striking Designs For Daytime or Evening Glamour Styles 6 Unique Collars Medium Size NRA Vintage Sewing Pattern
gold collar tips by FIFvintage on Etsy, £3.99
en trend 2016 floral embroidered peter pan collar inspiration