In [[1960]] ''Frederik Grube'' died, leaving the company to his sons, but the advent of the ballpoint pen had made it less and less significant, which still continued to produce pens and writing instruments, adapting to various trends (with plastic pens and with the use of [[hooded nib]] introduced in [[1962]]) and focusing heavily on the educational market, as for the [[Kaweco VP|VP]] model of [[1964]], cartridge filler and [[hooded nib]]. | In [[1960]] ''Frederik Grube'' died, leaving the company to his sons, but the advent of the ballpoint pen had made it less and less significant, which still continued to produce pens and writing instruments, adapting to various trends (with plastic pens and with the use of [[hooded nib]] introduced in [[1962]]) and focusing heavily on the educational market, as for the [[Kaweco VP|VP]] model of [[1964]], cartridge filler and [[hooded nib]]. |