Part Number: 12401-1A-B2 (Gyro horizon indicator) Part Number: 12401-1AC1 (No description) Part Number: 12401-1A-E1 (Vertical gyro control) Part Number: 12401-1B-0 (Indicator-vert.gyro) Part Number: 12401-1B-A1 (Vertical gyro control) Part Number: 12401-1B-B1 (Gyro horizon indicator) Part Number: 12401-1B-E1 (Gyro ind) Part Number: 12401-1B-J1 (Gyro horizon indicator) Part Number: 12401-1C-A1 (Gyro horizon indicator) Part Number: 12401-1C-C1 (Control vertical gyro) Part Number: 12401-1D-B1 (No description) Part Number: 12401-1F-B2 (Vertical gyro control) Part Number: 12401-1G-B1 (Horizon) Part Number: 12401-1G-C1 (Horizon)