This page contains as yet unidentified insulator designs, mostly incomplete examples or unmarked.
These first views show a simple, unmarked insulator from a small branch line in the Wye valley. The remains of the pole from which it came were nearby along with some GWR standard cordeaux types, all smashed and enough fixings on the crossbars for seven insulators per pole. It has been confirmed photographically that the poles on this particular section of line did indeed hold seven insulators, but it is impossible to confirm their design. A little further along the route stands a pole with two of its broken Varley Double insulators still in situ, so obviously there was quite a mixture in use by the time the line closed in 1965.
Made in porcelain, this example had a cemented spindle, two sheds and was probably fired upside down as the top has been left unglazed. It is 3" in height, approx 2.1/2" in diameter at its widest point and the spindle hole is only 3/4" in diameter suggesting a thinner than average spindle size.
It is propositioned that this may be an E.I.366, classified Postal Telegraph, England, as listed in the Buller, Jobson & Co Ltd catalogue of 1885
This next example came from another disused line, the Pontypool to Monmouth branch at Little Mill Junction. The main line at Little Mill remains in use today, but the branch to Monmouth closed and only the truncated remains to the ordnance factory at Glascoed are left all be it in a mothballed state.
Stamped 'CLARK'S PATENT' and 'GRAINGER WORCESTER', it was a double shed example with a cemented spindle and conical shape. 3.1/2" in diameter and at least 4" tall from the top to the root of the sheds, this was a sizeable insulator.
Products were stamped 'GRAINGER WORCESTER' until 1850, after which & Co was added. Could this insulator be earlier than 1850 ?