The Kagin-11 Humbert $50 appears to be the earliest coin struck by the Assay Office in 1852. These slugs were issued between the New Year and mid-February, when Curtis, Perry & Ward officially took charge of Moffat & Company and removed Augustus Humberts name from all United States Assay Office issues. It is the among scarcest varieties of Reeded Edge slug, with only around 75 examples in private hands. Three or four mint state examples are known today, and an original choice AU would be considered a candidate for the condition census.
| coinage-type | Pioneer & Territorial Gold |
| desg | MS |
| designer | Augustus Humbert |
| edge | Reeded |
| material | Gold |
| mintage | Approx. 75 known |
| ngc-id | ANGT |
| obverse-description | Eagle clutching shield and scroll AUGUSTUS HUMBERT UNITED STATES ASSAYER OF GOLD CALIFORNIA 1852 UNITED STATES OF AMERICA. FIFTY DOLLS. 887 THOUs. |
| pcgs-link | 10217 |
| pcgs-number | 10217 |
| reverse-description | Engine turning |
| variety | Humbert |
| variety-2 | Target Rev, 887 THOUS, Reeded Edge, K-11 |
| year-display | 1851-1852 |