CREATE TABLE table_80289 ("NBR number" FLOAT, "Year" FLOAT, "Original operator" TEXT, "Class" TEXT, "Wheel arrangement" TEXT, "Road number" FLOAT, "Location" TEXT)

What is the highest NBR number that corresponds to the J class and the road number of 1211?
SELECT MAX("NBR number") FROM table_80289 WHERE "Class" = 'j' AND "Road number" = '1211'
SELECT MAX("NBR number") FROM "table_80289" WHERE "Class" = 'j' AND "Road number" = '1211'