I got some manufacturer samples at the Palms show... first I've seen with this company's name on them. They are also metal center chips; the only others I know of made by Burt were the one and five dollar LGKEY coin inlays used at Carson Nugget in Carson City.

The samples are in three sizes 42 mm, 44 mm and 46, mm, all larger than the standard US 39 mm chips.

The mold on this one is also interesting... apparently a house mold for Genting Highlands in Kuala Lampur, Malaysia, as JohnC had at least one other with their logo on the inlay.

Sorry, no extras, but maybe JohnC will offer some here if he has any left.