Sunpearl Cop. 2725 Medium

Bohemia Works brand is and was made by L&C Hardtmuth of the Czech Republic, formerly Czechoslovakia. I'm not sure when that brand was first established but it must have been after the mid 1950s to 1960s. This brand was used by Hardtmuth to export products into countries that already had the Hardtmuth or Koh-I-Noor names taken by domestic companies.