Which collar device is associated with a Chief Petty Officer (CPO)?

The gold fouled anchor with silver USN is indeed the collar device associated with a Chief Petty Officer (CPO). This insignia is significant as it represents the rank and the responsibilities that come with being a CPO in the United States Navy. The fouled anchor symbolizes naval service and authority, while the addition of "USN" signifies the individual’s affiliation with the U.S. Navy.

For others, one eagle above one rocker and one eagle above two chevrons indicate different ranks within the Navy, specifically for lower ranks than that of a Chief Petty Officer. Furthermore, the gold fouled anchor without "USN" is typically associated with a different context or rank that does not explicitly identify the individual as a Chief Petty Officer. Thus, the collar device distinct to CPO is accurately captured by the gold fouled anchor with silver USN, aligning with the established Navy uniform standards and insignia classifications.