Hyperbolic Match Output
Model:6581 Haiou Pai (Seagull)
Scales Front: || LL01, LL02, LL03, DF || CF, CIF, CI, C || D, LL3, LL2, LL1 || CF is folded at π
Scales Back: || Sh1, Sh2, Th, A || B, T, ST, S || D, DI, K, L ||
Gauge Marks: π is on DF CF CIF CI C D.
Construction: 25 cm.; Plastic; Cursor is not framed. Has fixed plastic end brackets and rubber feet.
Source: From the Collection of Daryl Tang