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According to TCR #12

$1 - N1805 - Value C
$5 - N1804 - D
$25 - N1803 - D
$100 - N0879 - E
$500 - N0886 - F (light gray, 6 split white insers)
$500 - N1039 -I (purple, 3 split brown) Baccarat

There was no mention of circles. Hope this helps...