Choose a device:

construction, buildingqty: 1

More specific:

Choose basic color of device:

blueconstruction, buildingqty: 1

goldconstruction, buildingqty: 1

Primary or secondary?

primary construction, buildingqty: 1

secondary construction, buildingqty: 1

Combined flag identification

by main colors

golddark red+ other

by device on the flag

construction, buildingqty: 1