The white flag is a "masked house banner", which was a separate one in the early years and can be purchased in the Steam market or Taobao.

The red flag is the back decoration in the suit "Twisted Glory", which comes from the second series Aquarius of Ti9. This vase is out of print.

Generally speaking, the suits in the collection bottle are not tradable and can only be given away. If you want it now, you can take this set to Taobao to find an unopened seller, add it as a friend, pay it 30 days later and let him give it to you. The prices are all at 300+, which is not cheap.