I dont collect stamps but recently found these 3 stamps among my hockey cards. Looking for info on them.

Any help appreciated

1 1/2 cent US stamp.
no date on it
cancel lines threw it
Martha Washington is on front.


CDN 2 cent stamp
no date on it
cancel lines on it
Looks to be King George on front.

CDN 2 cent stamp
NO cancel marks on it
date at top of stamp says 1784 on left and 1934 on right
Stamp is New Brunswick