Section 18. Property in Specific Goods Passes When Parties So Intend.—

1. Where there is a contract to sell specific or ascertained, goods, the property in them is transferred to the buyer at such time as the parties to the contract intend it to be transferred.

2. For the purpose of ascertaining the intention of the parties, regard shall be had to the terms of the contract, the conduct of the parties, usages of trade and the circumstances of the case.