The shah of Iran has still not collected the Mexican tourist visa extended to him recently, but he is expected to do so in the next few days, Foreign Minister Jorge Castaneda said today.

Castaneda added that the vida was valid for six months and not for three months as Mexican officials had stated earlier.

There is much speculation about the shah's whereabouts. Reports from Panama indicate the he is on a yacht and is expected to pass through the Panama Canal on his way to Acapulco.

The Acapulco beachfront home owned by the shah's older sister, Princess Shams, however, is still undergoing repairs and reconstruction and it reportedly will not be ready to be occupied for some time. It is not known where the shah would stay were he to arrive here.

The Mexican foreign minister stated emphatically that the shah would have to take care to his own security, Castaneda said.

Asked whether the shah's arrival in Mexico would affect relations with Iran, Castaneda said, "We do not know what Iran's attitude will be." Mexico has diplomatic relations with Iran although it has recalled its ambassador recently and its embassy is headed by a charge d'affaires.*