The annual trials of watches that took place first in Greenwich and later at the Royal Observatory in Kew and the National Physical Laboratory in Teddington were an opportunity for the Admiralty to choose suitable timekeepers and for manufacturers to obtain an independent assessment of their merchandise.

London books, prints and wine specialist Forum Auctions was founded in July 2016 with the ambition of combining the best of the digital and the analogue worlds. A decade later, with all but one of the original team still on board, the company is preparing for two special anniversary sales. Founder and executive chairman Stephan Ludwig shares his views with ATG.

This summer, a diverse range of noteworthy lots will go under the hammer at auction houses across the UK. Here we turn a spotlight to some of these – from a first vampire novel and Titanic launch tickets to a Duke of Wellington portrait and a Ravilious watercolour

What is considered the first coin made in platinum was among the highlights of the second tranche of British coins from the so-called Traveller collection.

Items associated with the White Star Line, the British shipping company that built its global brand on unmatched passenger comfort, continue to thrive at auction.

A mirror for an East End brewery set a new record at £33,000 as the breweriana collecting market matures

A four-page letter written by Edward ‘Bill’ Wilson to a friend during the early days of the doomed British Antarctic Expedition sold for £19,000 at Fieldings (26% buyer’s premium) in Stourbridge.

Bidders spot copy of 1631 Barker bible that contains jaw-dropping mistakes missed in proof-reading

Our selection of lots from 17 upcoming auctions

Guided at £800-1200, a 10in (26cm) medieval ‘rotating’ or ‘register’ bookmark sold at £7000 at Semley Auctioneers (22% buyer’s premium) in Shaftesbury, Dorset on May 16.

Serendipity had it that two of the so-called Wilton Marbles, formerly in the celebrated collection of the Earls of Pembroke at Wilton House in Salisbury, appeared for sale within a week.

The two opening lots of Chorley’s Modern Art & Design sale on June 2 were a walnut and ebony secretaire cabinet and a dresser designed and made by Arts & Crafts titan Sidney Barnsley (1865-1926).

The French sculptor Paul Comolera (1818-1897) first appears in the Minton records in October 1873 and is listed until 1876. During this short time, he created some of Minton’s greatest models of animals which were often observed from life.

West Sussex firm has made the trunks something of a speciality after four five-figure sales in a decade

This early 20th century Russian silver and cloisonné enamel pill box measuring just 1½in (3.5cm) across bears marks for Fabergé and Feodor Ruckert (1840-1917).

Henry Piddington (1797-1858) was an English sea captain who sailed mostly in East India and China.