Kubva kuma1920 kusvika kuma1960, pamberi pekuvandudzwa kwepeni yebhora, Parker anga ari nhamba yekutanga kana nhamba mbiri mukutengesa kwepasi rose. Muna 1931 Parker akagadzira Quink (inki inokurumidza kuoma), iyo yakabvisa kudiwa kwekuvhara. Muna 1941 kambani yakagadzira mhando yakashandiswa zvakanyanya yepeni yemvura munhoroondo (inopfuura madhora mazana mana emamiriyoni ekutengesa munhoroondo yayo yemakore makumi matatu), iyo Parker 51. Zvivakwa zvekugadzira zvakagadzwa pamusoro pemakore muCanada, United Kingdom, Denmark, France, Mexico, USA, Pakistan, India, Germany (Osmia-Parker), Brazil neArgentina. Mubvunzo: ndeipi yaive yakakurumbira mhando yekunyora pamberi pepeni yebhora?
Parker