Keywords: Greek minuscule Sigma with ligatures.svg en Samples of ligatures involving Greek letter Sigma in medieval minuscule handwriting and early modern printing own based on glyphs in the Rgreekl2 font made by Vernon Kooy http //schmidhauser us/tools/rgl/rgreekl2 pdf Fut Perf 2010-08-14 Sigma letter Greek ligatures σ |