This suit has the designation A4-H, and was manufactured for Hamilton Standard by the International Latex Corporation in 1964. The A4-H series of suits were constructed in 1964, and were the second series of Apollo developmental/training suits.
A4-H suits came in two configurations. Those with a white cover-layer were for training purposes only, and those with an aluminized covering were for vacuum chamber thermal testing in addition to ground training.
This suit has gloves, and was transferred to NASM from NASA - Johnson Space Center in 1976.
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.