Early 1960's Parker 61 Heirloom with 1/10 14K gold filled cap (Rainbow cap variant). The pen is clean and well restored and ready to write. To fill the Parker 61 you need to soak the capillary filler onto ink bottle and let the filament filled up with ink. This is groundbreaking invention by Parker but the side effect from having this kind of filling system is it hard to do full cleaning in case you are about to change ink or do regular maintenance to soak & clean your pen.
