this is a RainSong BI-WS1000N2 Black Ice, a premium all-graphite acoustic-electric guitar.
Carbon Fiber Construction: Unlike traditional acoustic guitars, this instrument's body and neck are constructed entirely from a carbon fiber/graphite composite. This makes the guitar completely impervious to changes in humidity and temperature—a massive advantage for traveling or maintaining consistent tuning stability.
The "Black Ice" Top: The striking geometric pattern on the soundboard is RainSong's signature "Black Ice" design. This is achieved using their "Projection Tuned Layering" technique. Because the carbon fiber is meticulously laid by hand to achieve this specific tonal and aesthetic result, every single Black Ice guitar has a completely unique pattern.
Body Shape: The "WS" indicates their Grand Auditorium body shape with an extra-deep cutaway. This shape combines a large, deep chamber for strong bass and projection with a narrow waist that provides balanced, ringing trebles.
Neck and Hardware: It features RainSong's all-graphite N2 neck with a 21-fret composite fingerboard. The fretboard is adorned with their classic "shark" inlays, and the soundhole is encircled by a vibrant abalone rosette.
Electronics: It comes equipped with an active undersaddle piezo pickup and an onboard preamp system (mounted on the upper bout) with EQ controls, allowing you to easily plug into an amplifier or PA system.
Retail Value: When these were still available brand new, they typically retailed for between $2,599 and $3,099.
Used Value: On the used market today, assuming it is in the excellent condition shown in your photos, these generally hold a value of between $1,540 and $2,535.