Once again, I go to the CCF Coin Facts to get the Grading Criteria:
Liberty Head Gold Dollar General Grading StandardsVF20 Very Fine- LIBERTY on headband complete and legible. Knobs on coronet defined.
EF40 Extremely Fine- Slight wear on Liberty's hair. Knobs on coronet sharp.
AU50 About Uncirculated- Trace of wear on headband. Near full luster.
AU55 Choice About Uncirculated- Evidence of friction on design high points. Some of original mint luster present.
MS60 Uncirculated- No trace of wear. Light blemishes.
MS63 Choice Uncirculated- Some distracting contact marks or blemishes in prime focal areas. Impaired luster possible.
And while this grading criteria doesn't really address anything between VF-20 and EF-40, this coin obviously is better than VF20, but not up to EF-40 (due to more than slight wear on the obverse hair).
My best guess is VF-30 for this
very nice example of an 1851 gold dollar!

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