left and a range scale (in yards) on the right of the cradle. These arrangements also incorporated independent line of sight, meaning that the sights could remain laid on the target while the barrel was elevated or depressed. A clinometer was provided for indirect fire when the sight was aimed using a gun-arc (a refined version of the expedient devices used in South Africa) and aiming posts in line horizontally with the target. In 1906 indirect fire goniometric sights were adopted which consisted of an alidade mounted on a circular scale graduated in degrees that was mounted on the shield. In 1910, the Number 3 Dial Sight, a refined version with a telescope and compass, replaced the goniometer. The rocking bar and telescope were retained for direct fire, as was the range scale on the right in spite of a clinometer being part of the Dial Sight mount. In 1910, after three years of trials, the Number 7 Dial Sight was adopted. This was a very heavily modified version (notably using external instead of internal scales) of the German Goertz panoramic sight. This, with its sight mount that again included a sight clinometer, replaced the No 3. However, resolving various issues, notably with the sight and mount carrying case mounted on the shield, meant that the Number 7 sight did not enter service until early in 1914. Unusually for a 20th-century British gun, the 18-pounder retained two-man laying throughout its life, elevation (in yards) was set on a range scale on the righthand side of the cradle. The Equipment Committee had also insisted on better methods of fuze setting, important because until late in 1914 it only had time fuzed ammunition. A hand held mechanical fuze setter was developed, and in early 1914 a "fuze indicator" was introduced, this converted the range into a fuze setting. Mk I Gun on Mk I Carriage The Ordnance Quick Firing 18-pounder Mark I gun barrel was wire-wound for one-third of its length, chosen as it was lighter, stronger and cheaper to manufacture than a fully built-up barrel. A jacket was shrunk over the wire and "A" tube. The Mk I gun and Mk I carriage were accepted into service on 30 June 1904. The narrow single-pole trail design of the Carriages Mk I and II were suited to towing by teams of horses, but constrained downward motion of the breech, and thus limited