For your consideration, here is a Casio Scientific Calculator Instruction Manual only, for fx-570a, fx-570c, and fx-991n, in English and Spanish, 82 pages total. The manual has some wear on it. There is a crease and tear at the top and bottom of the front cover. The back cover corner is creased. Item pictured is the actual item up for sale and comes from a non-smoking household. (161.62q-.hc)