This is an anniversary reprint from 2000 from the research I had done on this. The book looks to be unread and in like new/new condition.

Info found about the reprint online on boardgamegeek dot com:

The TSR Silver Anniversary Miniature Reprints are miniature (4.1" x 3.3") versions of D&D, AD&D 1st and AD&D 2nd edition rule- and sourcebooks. Some boxed sets have also been available. They were published by Wizards of the Coast and Twenty-First Century Games in 2000 as part of the TSR Silver Anniversary (the Silver Anniversary logo is printed on the interior cover page).

The following books are known to be part of this series:

D&D

Dungeons & Dragons Basic Set (Second Edition)

Dungeons & Dragons Expert Set

AD&D 1st Edition

Players Handbook (AD&D 1e)

Dungeon Masters Guide (AD&D 1e)

Unearthed Arcana

Legends & Lore

Monster Manual (AD&D 1e)

Monster Manual II (AD&D 1e)

Fiend Folio

Dungeoneer's Survival Guide

Wilderness Survival Guide

Manual of the Planes

Dragonlance Adventures

Dragonlance Miniature Reprints - Volume 1

Dragonlance Miniature Reprints - Volume 2

Greyhawk Adventures

Oriental Adventures

World of Greyhawk (2nd Edition)

AD&D 2nd Edition

Dark Sun Boxed Set

The Ruins of Undermountain

Menzoberranzan

Elminster's Ecologies