Section 3(2) in Kerala Survey and Boundaries Rules, 1964
(2)Theodolite stones : - Granite stones of durable quality roughly squared of approximate dimensions measuring 60 cm x 15 cm x 15 cm with a plummet hole, 1cm deep cut on the top and a coconut tree mark 1 cm deep cut on one side (G.O )p) 367/76/RD , dated 3rd March 1976).The survey marks which have been duly planted under proper authority before the commencement of these rules shall be deemed to be of the prescribed description and size.
