Bob Hiestand post is good. ... ..... If the chip is (1) inexpensive and (2) a strong modern casino chip, I send it in a regular sturdy envelope (like a Kraft envelope) AND SANDWICH THE CHIP BETWEEN CEREAL BOX CARDBOARD, and tape the sandwiched chip to a piece of folded paper, so the whole thing is no more than 1/4 inch thick! That lets me send it first class letter mail with 21-cent non-machinable surcharge.

I can't get tracking on a domestic letter. But if sent international first class letter, I have the customs form attached, so that often serves as tracking too.

Bookmark this for postage rates:
https://pe.usps.com/cpim/ftp/manuals/dmm300/Notice123.pdf
It shows the current rates, but in a week or so, when the rates increase, the link should show the new rates!

Robert
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