Inscription
lower left in graphite: 4/20; lower center in graphite: Welshpool; lower right in graphite: Leonard Lehrer; inscriptions on verso by later hands in graphite, lower center verso: 70 ca l / Rives; lRv//: 71-187 / Calendered / Rives BFK
Marks and Labels
BS: Tamarind and printer's chops
