Contract Validity Dependent on Unfixed Valuation

The case involved a dispute over the validity of a contract of sale where the initial agreement stipulated a price subject to adjustment based on a subsequent official valuation, and the buyer subsequently claimed that the seller was legally obligated to perform the sale at the price determined by that valuation, even though the seller refused to sign the final deed reflecting that price. The court held that where the parties agreed to a price subject to a future official valuation, the obligation to sell was conditioned upon that valuation being fixed; consequently, since the valuation was not definitively established or accepted by both parties as the final contractual price, the subsequent refusal by the seller to execute the sale at that determined figure did not constitute a breach of the original promise, leading to the annulment of the lower court's order compelling the sale.