Coal scuttle bonnets were popular in Victorian 1840s through the 1850s. Their shape is similar to the pail that held coal hence the name coal scuttle. The ties range from 2-3" wide and get wider towards the 1850s.
Pattern: McCalls M5129 has several versions to make up coal scuttle bonnets. View A and B use the same base with different trims. Two main pattern pieces make up the buckram base.
Faux drawn bonnets were made by sewing in gather lines and gathering fabric over the buckram forms. This was used on some of the first made bonnets because it was easier to do than to get a smooth fabric cover.