Here we have an Antique Circa 1900 Dunhill Airtight Mahogany Humidor. 

It is made of Mahogany with the lead weight to the lid to secure the top with a seal around the edge to ensure it is air tight. 

It has the white circular label to the centre on the underside of the lid. It is marked 'Dunhill's Airtight' with the Patent number 11832/13. It also has the Duke Street SW1 London address. 

It is designed to hold 4 or 4 1/2 inch cigars. 

It measures 12.5cm tall, 16.5cm wide and 15.3cm deep. 

There is a split to the lid, one fine split to one side and one larger split to the other side. All are visible in the images.