We can not control this. For China (& rest of Asia) & US allow at least 2 to 3 weeks. Depending on the situation it can take up to 1.5 month. This also influences the tracking data shown online.
You can follow it at. The item "Antique Chinese 17C Xuande Marked Ko Sometsuke plate Transitional Ming" is in sale since Wednesday, April 18, 2018. This item is in the category "Antiques\Asian Antiques\China\Plates".The seller is "theceramics_and_collectibles" and is located in Amsterdam. This item can be shipped worldwide.