《明史·列传·卷一百一十四》
至于像海木，虽然官价是一株一千两银子，等到运抵京城，费用何止一万两。
至若海木，官价虽一株千两，比来都下，为费何止万金！
As for sea wood, although the regular price is one thousand taels of silver per tree, by the time it is transported to the capital, the cost is more than ten thousand taels.