Even the signing of a letter of principle is considered rare.

The announcement today marked the signing of a letter of intent between the companies.

Among other things, Gutiérrez's signing of a Letter of Intent with the International Monetary Fund sparked outrage.

But Mr. Taruskin, no doubt inadvertently, reveals his own agenda when he speaks of Shostakovich's "failures of nerve," referring to his membership in the Communist Party in 1960 and his signing of a letter denouncing the dissident Sakharov in 1973.

CONSOLIDATED GRAPHICS INC.,Houston, a printing services provider, has announced the signing of a letter of intent to acquire the business and assets of Jarvis Press Inc., Dallas, a commercial printing company.

On 28 April 2010, Caribbean Airlines Limited and Air Jamaica signed a final agreement for the purchase of Air Jamaica by Caribbean Airlines Limited, following the signing of a letter of intent to merge in January of the same year.