The Bateman cartoon published in Punch in 1933 showing nine different ways to bid at auction.

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Published in Punch in 1933, The Art of Bidding shows nine heads captioned Some do it by raising an eyebrow, Some by the slight inclination of the head, Some with a wink, Some by adjusting their tie, Some by elevating the catalogue, Or a forefinger, Some by the removal of their spectacles, Another by replacing them, But the heathen – does it by word of mouth.

Signed and inscribed, the unframed, 15 x 11in (38 x 28cm) cartoon is estimated at £2000-3000.