Current style Ghama diplomatic/foreign embassy plate. Letter would indicate 1995 use, however.
The 600 would indicated the Liberian Embassy with the Ambassador receiving the 00 plate

Image sent by John O. Perez of Wichita, Kansas

2000 (indicated by suffix F) Ghana diplomatic/foreign embassy license plate (Image sent July 2003)
Image sent by Craig Boll of Acton, California