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 1½in deep at the back but the points come down to approximately 2¾in at the front.
A distinctive shape in early part of C20th particularly from 1920-1950.
When ordering collars it is usual to add ½in to the neckband collar size so a 15in shirt would need a 15.5in collar.
Specialist laundry required
Collar Stud Not Included.