Search for a DHS Office or Service Provider by selecting your county, and, for Cook County, your ZIP Code:
Isle of Man 2015 - 175th Anniversary of the Penny Black Stamp-Proof Fine 999.9 1/5oz Gold Crown.
Using the labels at the top of the picture as a key, you can identify the marks. 1  LAO indicates the jewelry maker. 2  The crown indicates the assay office (institutions that test the purity of metals). 3  750 indicates the gold is 18k.