1860's: King George & Parthenon essays (copper plate), 20λ engraved (type 2, showing a poor design of the head), in brown, genuine, on thin cardboard, short margins, Sup (Bill Ure's collection)
1860's: King George zincographic essays, 5λ fine printing in black, on green colored paper, good margins all around, F -some thins (Bill Ure's collection)
1860's: King George & Parthenon essays (steel die), 20λ engraved (type 1, showing a successful design of the head), in black, genuine, on white glossy cardboard, wide margins, VF -light thin (Bill Ure's collection)
1860's: King George & Parthenon essays (lithographic plate, forged), 20λ fake lithographic printing (type 1a, showing a successful design of the head, poor printing, with different "Γ" of "ΓΡΑΜΜ"), in eight different colors (two copies each), on thin paper, Sup (Bill Ure's collection)
