Παραδείγματα τύπου

Ιδιωτική συλλογή
Χ.Χ. (1970) – (en) Series A; engraved (with grey border at top of reverse and purple border at bottom)Υπογραφές: CMA, FIB(en) Series A; engraved (with grey border at top of reverse and purple border at bottom)
145 × 70 mm

Χ.Χ. (1970) – (en) Series A; engraved (with grey border at top of reverse and purple border at bottom)Υπογραφές: AIC, JBM(en) Series A; engraved (with grey border at top of reverse and purple border at bottom)

Χ.Χ. (1971) – (en) Series B; lithographed (with grey/green border all around reverse)Υπογραφές: AIC, JBM(en) Series B; lithographed (with grey/green border all around reverse)