Object #3 - Best Guess ANSWER
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This item is an antique coffee grinder, likely dating back to the late Victorian period, circa 1900. It features a cast-iron base with a brass hopper and a turned wooden knob on the grinding handle. Similar models were manufactured by companies such as Archibald Kenrick & Sons of West Bromwich, England.
It includes a slide-out drawer with a brass knob for collecting ground coffee.