Parker 21 1950's Fountain Pen blatter Filled

This is a 1950's Parker Fountain pen. The barrel is dark aqua and the cap is chrome. The blatter looks to be in excellent condition.The inside clip is marked made in the USA Parker 21. The pen measures about 4.75" without the cap and 5.125" with the cap. I have not put ink in it ,but the tip and blatter apperar to be in excellent condition. It has not been tested.