Return to those glorious days of yesteryear with ~the~ definitive kiss-your-ass-goodbye nuclear cold war memoriabilia. Also an essential working tool if you decide to nuke that pesky neighbor down the street.

Mint CALCULATOR SET, RADIAC AND NUCLEAR YIELD: ABC-M28A1. Still sealed in original military storage package. NSN 6665-00-130-3616. Consists of a 4x4 inch green vinyl carrying case, a heavy plastic instruction sheet, and two fairly heavy plastic circular slide rules.

The first three-wheel circular slide rule calculator ABC-M1A1 determines nuclear dose rate versus time of entry after burst. The reverse side has operator use instructions...

The second ABC-M4A1 circular slide rule is double sided. One side relates yield in kilotons to the bottom and top cloud...

The obverse relates fireball illumination to flash-to-bang times...

Here's what the vinyl case looks like...

Can't you just picture some military type dude running around outside in the middle of a nuke attack out in the open and busily working all his slide rules and "Dang - There goes another one!"

Approximate shipping weight: 1 pound.
These are becoming exceptionally scarce.