Table: gw_locomotives
Columns: manufacturer
type
quantity
p_m_nos
gwr_nos

Question: What is the lowest quantity for GWR Nos. 696, 779, 93 5 from the manufacturer Peckett and Sons?
SQL: SELECT MIN("quantity") FROM gw_locomotives WHERE "manufacturer" = 'peckett and sons' AND "gwr_nos" = '696, 779, 93 5'