Genuine characteristics are the same for all issues
1860. Genuine Michel #23
1862. Genuine Michel #34
Fournier forgery
Illustration by Plácido Ramón de Torres: Album ilustrado de sellos de correo, Barcelona 1879. Torres sold illustrations to various dealers/forgers from 1864 onwards, as well as made forgeries himself.
Reprints
Reprints exist of all values. Colors are more vivid. Paper different. Ungummed. All bearing a ‘ND’ (Neudruck) mark on the back