I wrote a 5 part column on the chips. They are rich in history.
The INN chips are pictured in part 5 Feb 00 on chequers.

The INN chips were attributed to Saratoga NY until I wrote the 1st 4 parts (also on chequers) and other family members contacted me.

The INN chips are not rare. The family has several 100 sets and there are plenty in the hobby already. UNLESS, you have the black one. I have the only known black in the hobby. The family has 6 others. Last I heard he wanted $300 each for them.

John B and I have the only Maltese Cross chips in the hobby. They are also pictured in part 5. The family has about 100 sets of them.