This pill is
PROPOXYPHENE NAPSYLATE 100 MG /ACETAMINOPHEN 650 MG
Generic for Darvocet-N 100
Imprint Code MYLAN / 1155
You will find an image at mylan.com
Description Film-Coated White, Unscored, Capsule Shaped tablet
Info at
http://acetaminophen.and.propoxyphene.drugs.com