This is an Eversharp Fifth Avenue lever-fill fountain pen in Jet Black c. 1943-1947. It was Eversharp's answer to the Parker 51, with features like a hooded gold nib and pull off cap, and, like Parker, Eversharp claimed the pen wrote dry with quick dry ink. Eversharp gave the top of the section a V shape, a feature that helped orient the pen to correct writing position. The cap was 14 karat gold fill on sterling silver, due to war time restrictions on brass. The double check on the top of the clip was Eversharp's mark for its lifetime guarantee. The 5 1/4 inch long pen was $12.50 and the matching pencil was $6.50. Colors offered were Jet Black, Navy Blue, Marine Green, Dubonnet Red, Army Brown and Silver Gray. The Fifth Avenue was not successful and the company continued to sell Skylines side by side with them until both were replaced by the Symphony in 1948.