Recognizing that in an F.O.B. contract, the place of delivery is ordinarily where the seller places the goods into the hands of the carrier at the seller's place of business
The buyer on notifying the seller of his intention so to do may deduct all or any part of the damages resulting from any breach of the contract from any part of the price still due under the same contract. Mass. Gen. Laws ch. 106, § 2-717