Late Victorian Terracotta "Exhaust Cowl" Chimney Pot by C. R. Stevens

A rare, architectural Late Victorian terracotta chimney pot featuring an integral vented cowl capped with a turned acorn/bud finial. Manufactured in the late 19th century (circa 1880s), this distinct pot is stamped on the lower section of the collar with the maker’s mark:

“PATENTED – C. R. STEVENS – EXHAUST COWL” (Registered/patented in Lewisham, London, c. 1882).

Designed to draw smoke upwards and prevent downdraughts, this piece showcases beautiful historical utility paired with decorative Victorian craftsmanship. The terracotta has acquired a fantastic naturally weathered patina.

Ideal as a standout garden feature, planter stand, architectural display piece, or re-installed on a period property restoration.

Approximate Measurements: Height 120cm, Diameter at base 33cm, Diameter at widest 41cm.

Condition Report:

Overall: Strong, solid display condition with authentic outdoor weathering.

Flaws to Note: * A stress crack runs across one of the structural vertical uprights near the vent ring (visible in close-up photos). This appears to be firm and still structurally solid.

Minor surface hairline/firing stress to the base of the top finial.

Typical light nibbles and minor chips consistent with age and exterior exposure.

Historical Background

The C. R. Stevens "Exhaust Cowl" Chimney Pot

Era: Late Victorian (c. 1881–1885)

Maker: Charles Richard Stevens, Sanitary Engineer & Inventor

Origin: Lewisham, South London

In the late 19th century, rapid London urbanization led to severe draft and smoke extraction issues in multi-flue Victorian homes. Engineer Charles Richard Stevens of Lewisham patented a series of innovative ventilation designs in 1881 to address these downdraughts.

Unlike standard mass-produced terra-cotta flues of the era, Stevens' "Exhaust Cowl" featured an integrated static vent system and top cap. By directing crosswinds across the upper openings, it created a vacuum effect to actively draw smoke up and out of the flue without needing moving parts.

Stevens exhibited his patented exhaust cowls and heating innovations at major national showcases, including the 1884 International Health Exhibition in London.

Collector’s Note

Stamped terracotta pieces bearing an inventor's direct patent mark from this period are remarkably scarce. Most surviving examples were lost during 20th-century roof renovations, making stamped Stevens pieces a highly collectible slice of Victorian engineering heritage.