Unit is NOS in the bag from ITT.

Let's hear from AI for laughs:

This battery adapter is a rare find for collectors of militaria. Designed for use with ITT 268462 ANVIS AN AVS-9 AVS-6 HGU-56 HDU-55, it is an original piece and a must-have for enthusiasts. Its new condition ensures that it is functional and ready to use.

The adapter is a great addition to any collection of personal and field gear, and its optics make it an interesting item for display. With its originality and impeccable condition, it is sure to be a valued piece for years to come.