It would not be the PR card that you would get while you are in the US, it would be the PR visa in your passport and I assume it looks something like this: http://i.ehow.com/images/GlobalPhoto/Articles/4555596/CanadaImmigrationPassport-main_Full.jpg except it would not say Singapore on it. After you land in Canada, you will get your PR card in the mail and that looks like this: http://www.cic.gc.ca/english/resources/publications/images/prcard-front.jpg