This is a Lady Sheaffer model 921 Gold Plated Chevron pattern fountain pen c1973-1978. This model follows the the general cap, barrel and section design of similar Lady Sheaffer pens seen in the 1973 Sheaffer catalog. The 5 1/8 inch long cartridge / converter pen has a 14 karat gold inset nib in a long nib section that first appears in the 1973 catalog and advertisements. Many versions of this type of Lady Sheaffer pen were offered at least through 1978. Prior versions had a short conical nib. The engraving consists of deeply cut long lines that make up the overall pattern.