Garmin MGL-3 GPS Antenna, backpack, and battery SN: 0246-10878-0594 with backpack SN: 0250-10900-0601 with backpack SN: 0250-10900-0624 with backpack SN: 0324-11620-1309 with backpack SN: 0324-11620-1313 no backpack SN: 0324-11620-0803 no backpack SN: 0248-10899-1313 no backpack 123A750265IA16E