Cryptochromatic spectacles

The  are a piece of headwear added to Fallout 3 in the Point Lookout add-on.

They provide a damage resistance of 1 and can be repaired with Glasses as well as Doctor Li's Glasses and Three Dog's Glasses.

Obtaining
The Cryptochromatic Spectacles are found in the toilet tank in The Homestead Motel's room 1D.

Related quest: The Velvet Curtain
The spectacles are used to see hidden color rings during the quest The Velvet Curtain and access the Chinese extraction bunker.

Appearances
appear only in the Fallout 3 add-on Point Lookout.

Bugs
If you have these glasses in your inventory when you begin the Operation: Anchorage simulation they will still be in your inventory during the simulation. "Confirmed on 360"