I did this little practice and enjoyed it a lot this afternoon. While browsing English type specimens from the XIX. century, looking for Antique designs, I found this beautiful ‘sterling’ in Vincent Figgins’ Specimen of Printing Types (1834)
—and then I digitalised it
—this was then modified to match the look and feel of the family I’m drawing
—showing the underlying structure of the glyph—and finally the weights.
These are more or less interpolated although I’m working with 4 masters and usually tweak the interpolated glyphs by hand.