Blondie's dog tags

 are a miscellaneous item in Fallout 2.

Characteristics
Collecting all three dog tags from the merc captains and using them on the safe will cause it to open without setting off the trap.

This item is a reference to the character in "The Good, the Bad and the ugly", played by Clint Eastwood.

Location
 can be acquired from Blondie's corpse, whom is located in the Mercenaries' cave between Broken Hills and Vault City