I was fortunate to buy about 30 of each design, so I can offer a good deal here. $3 postage for up to 4 chips. Return priv. PayPal OK, but contact me first.

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Quatro. Beautiful chip, wide border, big c. 41.5 mm (1-5/8 inch), very fine condition. Only $15 plus postage. Just one or two per customer.
Both sides shown:

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Concentric. OK condition. Only $6 plus postage.
Both sides shown:

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Robert