Date: Mon, 4 Jan 2016 15:38:02 -0000
The sign described as like 7 is surely a cursive form of π. The form used by Gauss (Disquisitio de elementis ellipticis Palladis) is much the same as that shown in manuals of Greek Palaeography as a cursive π. This is given by E.P. Thompson in two works, An Introduction to Greek and Latin Palaeography, Oxford, 1912, p.83, and A Handbook of Greek and Latin Palaeography, Chicago, 1975, p. 95.
Raymond Mercier
