The back of real photo postcards are not as helpful for dating as printed postcards - and I am afraid that this is no exception.

• The fact the it is by R. H. Clark is, on its own, not very helpful - as the firm is still trading in Royston as photographers.

• The subject (clothing, etc.) suggests before second world war - but I would not like to say how it relates to the First World War.

• The divided back shows it is later than 1902. The wording "This Space for Communications" means 1905 or later.

• The absence of a stamp box may indicate 1918 or later - but one cannot be certain. The presence of such a box on printed cards was virtually universal before this date - with the postage cost of ½d shown. The price, and more rarely the box, was dropped once it was realised that the price for posting could change.

•  Between 1899 and 1926 Robert Henry Clark is listed as a watchmaker & Jeweller of High Street, Royston, and as a Photographer of Kneesworth Street. By 1929 the Kneesworth Street entry has vanished. In addition later printed post cards give a High Street address (earlier ones just said Royston) and were produced by a national postcard publisher. It seems very likely that these later cards were produced after the photographers shop in Kneesworth Street had closed.

• It is suggested that the Cricket Team photo was taken before the photographers shop closed, and was probably taken after the postage hike in 1918.