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Photographs of T. A. Miller Brownlie's improved winnowing machine, designed to ensure against loss of crop due to failure of natural wind at the harvesting season. This larger version of the machine is fitted with wheels to facilitate transportation. The photographs show the machine from two different angles and are annotated on the reverse: 'A.239', 'A.240' and 'A.241'.

Specifications, drawings, patent applications, Indian patent, licensing agreement and correspondence relating to T. A. Miller Brownlie's improvements in the construction of winnowing or grain cleaning machines to ensure against loss of crop due to failure of natural wind at the harvesting season.

Photographs of T. A. Miller Brownlie's improved winnowing machine, designed to ensure against loss of crop due to failure of natural wind at the harvesting season. This smaller, manually-operated version of the machine is pictured from various angles with three trays laid beside it to collect the grain.