11 1/2in (29cm) high, c.1745-50 ‘Ker’ Amen glass, decorated with Jacobite symbols.

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They say opportunities for such shows are scarce, but they have turned up another remarkable collection for sale and from September 23-30 offer The Seton Veitch Collection of English Drinking Glasses at Court Close, North Wraxall, near Chippenham.

The man who built up this superb collection of some 130 glasses is described as modest and not well known in the glass collecting fraternity. This is unlike his glasses which have thoroughbred provenances and well-documented sale histories.

Collections of this calibre appear rarely and Delomosne say there is hardly an ordinary glass in the exhibition. Virtually all categories are well represented from the late 17th century through the whole of the 18th century.

The collection is especially strong on glasses commemorating the Jacobite cause and these include some particularly rare and important pieces, including the 111/2in (29cm) high, c.1745-50 'Ker' Amen glass, pictured right Decorated with Jacobite symbols, according to family tradition this massive drawn trumpet goblet was originally owned by James Ker of Blackshiels, banker to the ill-fated Young Pretender (Ker was financially ruined after Culloden in 1746). Priced in the region of £50,000, it is the most expensive glass in the exhibition, where prices start around £800.