Made by Scott & Co. by Appointment to Her Majesty the Queen Hat Makers. 1, Old Bond Street, Picadilly, W.
Superfine Quality.
No size labels but this came to me with another hat which belonged to the same man which is a size 6 7/8, equivalent to a 56 cm. 
It came in the box shown but it is a different maker. 
 
Condition: in good vintage condition, please see photos.
Weight: 137 g / 877 g in the box.