DescriptionBSiconvSHI3gr-STR.svg English: Parallel lines: track through with shift by 3/4 to right + track through Date 28 January 2014, 15:18:52 Source
DescriptionBSicon exvSHI3gr-STR.svg English: Unused parallel lines: line through with shift by 3/4 to right + line through Date 18 December 2014 Source