THW Patent Brick Portarlington

Impressed: THW // Patent.  (Thomas Henry Widdicombe, Portarlington, Victoria patented “An improvement in the construction of Bricks for Hollow Walls” on 23rd September 1871, Application number: 1559).
Variety: Flattened Z shaped brick.
Era: 1870s
Length: 370 mm
Rarity: Seem pretty unusual and quite a unique shaped brick. They are likely to still be in walls around the district!