In 1846, the US flag was raised over The Custom House, marking the end of California’s Spanish and Mexican chapters.
1846 年,海关大楼升起美国国旗,为西班牙和墨西哥在加州的统治时代画下句点。
英语百科
House mark
House mark is originally a mark of property, later also used as a family or clan emblem, incised on the facade of a building, on animals, in signet and similar in the farmer and burgher culture of Germany and Scandinavia.
The tradition originates with the mason's marks used in the Middle Ages.