Leica's Millennium special edition — the M6 TTL Black Paint, extremely collectible.
The Leica M6 TTL Millennium in Black Paint with 0.72x viewfinder is a special edition produced to mark the year 2000, featuring Black Paint finish (the traditional lacquered brass coating that wears characteristically to reveal brass) and the TTL (Through-The-Lens flash metering) capability added to the M6 TTL range.
The M6 TTL provides TTL flash metering in addition to the standard M6 ambient metering, the 0.72x viewfinder magnification standard, Leica M bayonet, a mechanical shutter operating without batteries, and the distinctive Black Paint finish of this Millennium edition.
The Millennium Black Paint edition commands a collector premium. Black Paint Leica bodies develop a distinctive wear pattern as the lacquer gradually reveals the underlying brass — this 'honest wear' is valued differently by photographers (who use the camera) versus collectors (who prefer near-mint). The TTL flash capability over the standard M6 is practically useful.
Assess cosmetic condition relative to collector expectations. Test TTL flash metering with a compatible flashgun. Verify mechanical shutter at all speeds without batteries. Check rangefinder coupling accuracy. The Black Paint finish should be carefully noted for wear pattern and condition.