SEI-CS-3079 | SEIKO PIN
SEI-CS-35018 | SEIKO tapered PIN
SEI-CS-35215 | SEIKO PIN ( aka singer 3012) 5 ~ 5.6 x 36.5mm
SEI-CS-50006 | SEIKO PIN/933
SEI-CS-60158 | SEIKO PIN
SEI-CS-8023 | SEIKO PIN /2117