Watts survey beacon lamp SH100, in metal case, with bulb assembly, tripod and instruction book (not seen), Serial No.263132. HO 28 (new condition) by Rank Precision Industries Ltd, Great Britain, 1968-1979 Watts survey lamp, British, 1968-1979 1968-1979
Watts survey beacon lamp SH100, by Rank Precision Industries Ltd, No.263132. HO 28 Watts survey beacon lamp SH100
