William IV mahogany mineral cabinet and contents by James Tennant, £4600 at Ewbank’s.
Complete with a catalogue dated December 1835 detailing more than 400 numbered specimens, at Ewbank’s (25% buyer’s premium) in Surrey on March 24 it had an estimate of £800-1200 but sold at £4600 to an online bidder.
James Tennant, elected a fellow of the Geological Society in 1838, ran a mineral shop at The Strand until 1881.
As mineralogist to Queen Victoria, he is best known for supervising the cutting of the Koh-i-Noor diamond for the crown jewels.
