I think they are both ordinary flat paper, just not saoked in water to remove the excess paper still attached to the back of the stamps.
Is it possible to scan these on a dark background please? Have they been soaked in water or floated off peper in water?
Are the fronts Canada 2c Queen Victoria?
edit: Oops, sorry, I had thought you were asking about Laid paper on a Canada Scott catalogue #32, 2c Green Queen Victoria. See pictures here:
https://goscf.com/t/22183&SearchTerms=,32