Search for any frase, use "quotes " for exact phrase. If you search Hartill numbers do it this way: H12345 without the dots from the catalog.

The search engine can be useful, if you want to see if this site contains a picture of a certain coin. Most coins can be searched by its legend (in pinyin), or its number. You can also search any frase like "knife", "Wu Zhu" or "iron". If you get a page with many coins, you can search again within the page using your browsers search function.