Yves St Laurent vintage Rollerball. Made in France. Black colour, gold detailing. Circa 1980.
In most vintage Rollerball pens, the refills are dry and have to be replaced.
Schmidt 5888 / 888: Widely recognized as the most common universal international rollerball format, fitting brands like Faber-Castel, Visconti, Diplomat, Conklin.
Brands like Lamy, Parker, Cross, and Montblanc use proprietary formats that do not accept standard international rollerball refill