Luke Honey Ltd has dated this piece to the Georgian era.
one side stained red, the other side left natural, kings and queens with multi-knopped central sections, kings with cogged finials, queens with ball finials, bishops with open mitres, knights as arched horses' heads, rooks as raised "double stacked" turrets with red and white brickwork and scalloped battlements, pawns with wide bases (3.5cm in diameter) in a 19th century mahogany box with a interior lining in blue velvet

King: 10.7cm high
Pawn: 4.4cm high
Box: 19.6cm wide
Provenance: Private British Chess Collection
Stock Reference: PR 1798
Note: Nice example of the late 18th century "Washington Pattern".

The rather solid rooks with incised brickwork and the arched heads of the knights are typical of the pattern, but more unusual are the 'double stacked' turrets on the rooks. The set is being sold with a 19th century mahogany box.
Luke Honey Ltd has dated this piece to the Georgian era.
You can view the stock and full dealer information on the Luke Honey Ltd Profile Page