These are a new line and are direct copies of a collar we found called "Marco" presumably as a reference to their spivvy Italian nature.
They are 1.5" deep at the back but the points come down to approximately 2 3/4" at the front.
A distinctive shape in early part of C20th particularly from 1920-1950.
When ordering collars it is usual to add .5" to the shirt collar size.
Specialist laundry required
Collar Stud Not Included.