CREATE TABLE table_73430 ("Number" FLOAT, "Name" TEXT, "Height  ( m ) " FLOAT, "Date of Birth" TEXT, "Position" TEXT, "Nationality" TEXT)

Name the nationality for francesco guglielmi
SELECT "Nationality" FROM table_73430 WHERE "Name" = 'Francesco Guglielmi'
SELECT "Nationality" FROM "table_73430" WHERE "Name" = 'Francesco Guglielmi'