Butler Machine Tool Co Ltd v Ex-Cell-O Corp (England) Ltd [1977] EWCA Civ 9 is the leading English case on the battle of forms. Below is a short and clear summary of the case along with its key details.

Citation: Butler Machine Tool Co Ltd v Ex-Cell-O Corp (England) Ltd [1977] EWCA Civ 9 (reported [1979] 1 WLR 401)

• Court: Court of Appeal (Civil Division)
• Judges: Lord Denning MR, Lawton LJ, Bridge LJ
• Date of Judgment: 25th April 1977
• Area: Contract Law — Battle of Forms, Offer & Acceptance

Facts: Butler Machine Tool Co Ltd v Ex-Cell-O Corp (England) Ltd

On 23 May 1969, Butler (seller) sent a quotation for a machine worth £75,535. On the back were standard terms including a price variation clause (price could increase if costs went up). It also said: the seller’s terms “shall prevail over any terms and conditions in the buyer’s order.”

On 27 May 1969, Ex-Cell-O (buyer) sent back an order for the same machine but on its own terms which did not contain a price variation clause and included different delivery terms, carriage and cancellation rights etc. It also included a tear-off slip (acknowledgment) which the seller had to sign: “We accept your order on the terms and conditions stated thereon.”

On 5 June 1969, Butler signed and returned the tear-off slip.

Later, delivery was delayed. Butler invoked the price increase clause and demanded an extra £2,892.

Ex-Cell-O refused to pay, saying the contract was on their terms, not Butler’s.

High Court judge ruled for Butler. Ex-Cell-O appealed.

Legal Issue

Whose standard terms governed the contract?

Butler’s terms (including price variation clause)

OR

Ex-Cell-O’s terms (fixed price, no price variation)

Decision & Reasoning

Appeal allowed. Contract was on the buyer’s terms. No price variation clause applied.

The Court of Appeal (especially Lawton LJ and Bridge LJ) applied classical contract principles:

• Butler’s quotation = offer
• Ex-Cell-O’s order = counter-offer (it materially altered the key terms). A counter-offer kills the original offer (Hyde v Wrench).
• Butler signing the tear-off slip = acceptance of the buyer’s counteroffer.

Thus, the contract was concluded on Ex-Cell-O’s terms.

Denning MR discussed a more flexible approach. Instead of rigid offer/counteroffer analysis, courts should look at all documents and conduct to identify consensus. Sometimes the “last shot” wins; sometimes the “first shot.” But in this case, he agreed the buyer’s form prevailed because Butler accepted the exact wording on the tear-off slip: “We accept your order on the terms and conditions stated thereon.”

As usual, Denning tried to modernise the law, but the other two judges stuck strictly to classical doctrine. Denning still arrived at the same result.

Outcome:

Contract was on Ex-Cell-O’s terms.

No price rise clause.

Butler not entitled to extra £2,892.

Rule/Legal Principle [Butler Machine Tool Co Ltd v Ex-Cell-O Corp (England) Ltd]

In a battle of forms, where each party insists on its own standard terms:

A purported acceptance that introduces materially different terms is a counter-offer (Hyde v Wrench).

When the other party signs or otherwise unequivocally accepts that counter-offer, the counter-offer’s terms govern.

The “last shot” generally wins when it is accepted without objection.

Takeaway:

When companies exchange conflicting standard forms, the contract usually contains the terms of the last definite acceptance — here, the buyer’s signed acknowledgement — so Butler’s price-variation clause did not apply.

References:

https://www.bailii.org/cgi-bin/format.cgi?doc=/ew/cases/EWCA/Civ/1977/9.html

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Hyde v Wrench is a landmark contract law case that established the rule that a counter-offer cancels the original offer, preventing its later acceptance. Below is a short and clear summary of the case along with its key details.

• Case name: Hyde v Wrench
• Citations: (1840) 49 ER 132; [1840] EWHC Ch J90; (1840) 3 Beav 334
• Court: Rolls Court, High Court of Chancery
• Judge: Lord Langdale MR
• Date: 8 December 1840
• Area of Law: Contract Law — Offer & Counter-Offer

Quick Key Facts: Hyde v Wrench

Wrench offered to sell his farm to Hyde for £1,000.

Instead of accepting, Hyde counter-offered £950 — this legally rejected the £1,000 offer.

Wrench later refused the £950 offer.

Hyde then tried to accept the old £1,000 offer, claiming it was still open.

Wrench refused; Hyde sued for specific performance.

Legal Issue

Can a party revive and accept an original offer after rejecting it with a counter-offer?

Held: Hyde v Wrench

No.

A counter-offer terminates the original offer. Once Hyde offered £950, the earlier £1,000 offer ceased to exist. So, Hyde could not later revive it by attempting to accept.

Ratio Decidendi

A counter-offer destroys the original offer. An offer cannot be accepted after it has been rejected or replaced by a counter-offer.

There was no contract, so specific performance was denied.

Extract From Lord Langdale’s Judgment

“The Defendant offered to sell it for £1000, and if that had been at once unconditionally accepted, there would undoubtedly have been a perfect binding contract; instead of that, the Plaintiff made an offer of his own, to purchase the property for £950, and he thereby rejected the offer previously made by the Defendant. I think that it was not afterwards competent for him to revive the proposal of the Defendant, by tendering an acceptance of it; and that, therefore, there exists no obligation of any sort between the parties; the demurrer must be allowed.” (Lord Langdale MR)

Why This Case Is Important?

Hyde v Wrench is important because it established the foundational contract law rule that a counter-offer destroys the original offer. This means that once an offeree rejects an offer by proposing new terms, the original offer cannot later be accepted unless the offeror renews it. The case protects clarity in negotiations by preventing parties from going back and forth in an uncertain manner.

References:

https://www.bailii.org/cgi-bin/format.cgi?doc=/ew/cases/EWHC/Ch/1840/J90.html

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