The cash value of an article or piece of property is the price which it would bring at private sale (as distinguished from a forced or auction sale) the terms of sale requiring the payment of the whole price in ready money, with no deferred payments. Ankeny v. Blakley, 44 Or. 78, 74 Pac. 485; State v. Railway Co., 10 Nev. 08; Tax Com’rs v. Ilolliday, 150 Ind. 210, 49 N. E. 14, 42 L. It. A. 820; Cummings v. Bank, 101 U. S. 102, 25 L. Ed. 903.