posted 11-18-2013 03:38 PM               

There are ten items, all identical, save the serial numbers. As I understand it, the X-part number indicates that they were experimental and never flown. They cannot be found on stowage lists. One was sold recently as an Apollo rock bag, but that does not seem accurate to me as it does not account for the "water bottle" inside the case. I would appreciate any clues that you have.

• Ten hot water bottle bags (for lack of a better ID)
  
• One gray, plastic bag: X20M32512-1
  
• One Beta Cloth, outer bag: X20M32525-5 and X20M32525-3

Measurements:

• Rubber bag, neglecting the self-tubing that extends from the bladder: 10.5 by 9 by 20
  
• Case with four snaps across the top. Measurements are open: 14 by 10.5 by 1.5

posted 11-19-2013 06:28 PM               

My only guess was possibly as part of system for urine collection while running high altitude tests or some other testing involving a closed spacecraft. I suppose they could have been for water instead.

The "20M" reminds me of some Skylab part numbers, but I don't have anything concrete to offer.