Augmented Four Corners STC #34 - High-Performance Sports Training Equipment for Basketball, Soccer & Fitness - Perfect for Home Gyms, Team Drills & Athletic Conditioning

Augmented Four Corners is a beautiful take-apart-put-together puzzle by legendary puzzle designer Stewart Coffin. Two groups of three pieces come together along a single sliding axis to form four clusters. 

One piece internally is signed "STC 1980", making this perhaps the earliest known example of STC #34. Made of cherry and Brazilian rosewood. Fit and finish is impeccable; some of Coffin's finest work.