1708 (Royal Soc.) 26 37 Part of the Plaister and Pinning Stones of the adjoyning Wall, was also broken off and loosened.
1829 2nd Ser. 2 133 (table) Provincial Terms..Ground Pinning-Stone.
1838 13 They'll no let ye pick out ae pinnin-stone frae the auld house, till ye hae..furnished them a new ane.