TONY LAMA <TLAM> TO BUY <COULSON OF TEXAS INC> Tony Lama Co Inc said it signed a letter of intent to buy Coulson of Texas Inc, a maker of heels and leather components. The company said exact terms of the deal have not been determined but that it does not expect the acquisition to have a material effect on its financial position. In addition to buying substantially of all Coulson's assets, Tony Lama said it would assume certain of the company's liabilities.