I have a number of these in my collection, I'm curious though, if I have gaps?

The chips I have include:

(No date) Hall of Fame World Series of Poker, one with a yellow center, one with a red.
Silver Anniversary World Series of Poker (No date, I assume this is 1994)
1995 Hall of Fame
1995 World Series of Poker
1996 World Series of Poker
1997 World Series of Poker
1999 World Series of Poker
2002 World Series of Poker
2004 World Series of Poker

So - 10 X 500 buy-in chips in total, either for 'Hall of Fame' or WSOP.

Are there gaps in my collection? Does anyone have the fillers for sale?

I think there is a 1994 Hall of Fame buy-in chip for instance, that I'm missing.

-Oke