Lady Sheaffer Skripsert in the tulle pattern: the X (ivory), XI (black), and XIV (red) models. These were produced around 1958-1964 and were marketed as women's purse pens.The tulle Lady Skripserts are clipless. There is no white dot on these models.
The tulle Lady Skripserts have lacquered metal bodies. The netting pattern is engraved and then gold-tone plated. The lacquer and plating are very delicate and it is becoming increasingly difficult to find these pens in undamaged condition.The nibs are rigid "plump wrap-around" style (not inlaid). These nibs are turned up at the tip rather dramatically, which causes some to mistake them for being damaged.
On the images above and below, the Sheffer Targa No. 679 in the tulle pattern and the Lady Skripsert XI are compared side by side. The nib on the Targa is an inlaid nib.The tulle netting on the Lady Skripsert is more elongated than on the Targa. The engraving on the Targa is considerably deeper and seems more durable. On the other hand, the Lady Skripserts are more elegant and delicate pens with an almost Japanese esthetic. Regardless of the pen, Sheaffer's "tulle" is one of my favourite patterns.

