Cheffins sold 12 lots from a 16-lot catalogue and achieved a 75% success rate at its second auction of the year on 20 June.
The Cambridge-based auction house raised £3.4m, outperforming its equivalent auction in June 2017.
Last year, Cheffins raised £3.1m from the sale of 15 lots from the 17 on offer, reflecting a success rate of 89%.
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