Manufacturer: Unmarked.
 
Date of Manufacture: 
 
Type: Glazed terracotta clay air brick.
 
Description: Richly glazed (Majolica) air brick.
 
Design: Lattice array of pierced triangles and diamonds.
 
Colours: Dark blue.
 
Dimensions: 7 3/4" x 4" x 1" (197 mm x 97 mm x 25 mm)
 
Condition: Good with tiny nibble to one corner and firing errors (see photos).