I'm looking for the following Souvenir Mint Sets with envelopes preferably. If you are willing to part with one or more, please let me know. Thanks! 1973-D 1985-P 1988-P 1988-D 1993-P 1994-P 1994-D 1995-P 1995-D 1996-P 1997-P 1997-D 1998-P 1998-D