CREATE TABLE table_name_72 (quantity INTEGER, manufacturer VARCHAR(255), gwr_nos VARCHAR(255))
What is the lowest quantity for GWR Nos. 696, 779, 93 5 from the manufacturer Peckett and Sons?
    
SQL: SELECT MIN(quantity) FROM table_name_72 WHERE manufacturer = "peckett and sons" AND gwr_nos = "696, 779, 93 5"