That is not non-standard or custom stick, it's 12 years old model and Bauer used to mark sticks like that. It's identical with current 23".
If I remember right 27" was 28,5", 26" was 27", 25" was 26,5" and 23" was 24,5". Bauer's measurement way was different between foamcores and composites. They changed the measurement way when they released 1S line.