Angel-Eyes' dog tags

 are a miscellaneous item in Fallout 2.

Characteristics
Collecting all three dog tags from the merc captains and using the combination of numbers etched on the back of them on the safe will allow it to open without setting off the trap.

Location
This set of dogtags is on Angel-Eyes in the Raider Cave.

Behind the Scenes
This item is a reference to the character in "The Good, the Bad and the ugly", played by Lee Van Cleef.