xxxx Unscrew key for Variant pens - until early 70s
Year: 1966
Description
Early unscrew key for Variant pens
Needed to open the nib of the pen.
First version seen earliest in documentation from 1966.
This is strange since variants were in use from 1958. so not sure how they were unscrewed before then.
Raplaced in early 70s by cone shaped key
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