In simple terms: Small controlled acquisitions reveal where the control platform deployed capital, while also marking the boundary of a strict special-situations definition. Sun Newspapers, Blacker Printing and Gateway Underwriters is included in the Buffett Partnership special-situations record with an evidence grade of A - named and directly described in the letters.

What Buffett saw

By late 1969 Berkshire owned Sun Newspapers, Blacker Printing and 70% of Gateway Underwriters alongside its much larger textile, insurance and banking operations.

These are included to make the control map complete, not because the source proves they were classic work-outs. They show how Berkshire was making smaller operating investments alongside the much more important insurance, banking and textile positions.

How the situation was meant to work

Buffett gave partners a compact way to judge scale: the three together represented a little over $1 per Berkshire share of investment and contributed under 10 cents per Berkshire share of earnings. That makes their limited financial weight easy to understand.

Buffett called the combined investment a little over $1 per Berkshire share and said the earnings contribution was under 10 cents per Berkshire share. The letters describe them as financially small relative to Berkshire.

The timeline, capital and risk

Capital disclosed: Combined investment was a little over $1 per Berkshire share, according to the 1969 Partnership Q&A.

Time frame: Late 1960s.

A complete list can become misleading if every item is put in the same bucket. The letters do not disclose a transaction-level return, and calling these small businesses workouts would blur the difference between an acquisition platform and event-driven arbitrage.

What happened

Outcome: Held as small operating units and not financially significant relative to Berkshire.

What the return means - and the lasting lesson

Return record: No case-level return is disclosed.

A complete historical index should mark its boundary cases. Not every controlled acquisition is a work-out; clear classification makes performance comparisons more meaningful.

This guide is educational information, not a recommendation, investment advice or a substitute for reading the underlying disclosure.