In A Nutshell Antiques and Interiors has dated this piece to the Victorian era.

The inner circumference is approx 55cm which translates as a size 6 7/8.
The hat comes in a fitted box with a leather carrying handle and a lined interior with elastic straps. The box is possibly not original to the hat and likely dates a bit later but it is a good fit and displays well.

Approximate Measurements of hat box ::
Height : 9 1/4" (23.5cm)
Width : 13 1/2" (35cm)
Depth : 12" (30cm)
The best description comes from the photos so please look at them all carefully and if you have any questions just ask.
Tracked UK Delivery £10
In A Nutshell Antiques and Interiors has dated this piece to the Victorian era.
Selling good quality victorian, georgian and earlier furniture, accessories & decorative items. Ashburton, devon. LAPADA member
You can view the stock and full dealer information on the In A Nutshell Antiques and Interiors Profile Page
In A Nutshell Antiques and Interiors is a registered member of LAPADA CINOA