Ejemplares de este tipo
Colección privada
s/f (1887-1898) – (en) Hartill#22.1276: Large type; Tong with open head (South branch)
s/f (1887-1898) – (en) Hartill#22.1276: Large type; Tong with open head (South branch)
Colección privada
s/f (1900-1908) – (en) Hartill#22.1279: Small type; round top Boo (West branch)
s/f (1900-1908) – (en) Hartill#22.1279: Small type; round top Boo (West branch)