Paul E. Wirt pens were the most popular of the late 1800s. They continued on into the 20th century, and this is a Wirt ringtop from the 1920s. We restored this vintage pen with a new ink sac. We also worked to de-oxidize the chocolate hazing. We didn't get it back to perfect black, but it nice and the chasing is clearly visible. You will write a really nice, smooth extra-fine to fine line. It has a tiny bit of flex, but we wouldn't call it a semi-flex nib. No cracks or deep scratches. 11cm capped.