Welcome Dave, pictures of both sides of the coin and banknote are needed to assess the grade/condition of these items.
If you are unable to take pics of them and upload them here, you could also compare them to same items on
ebay to determine their grade.
The latest coin news trends the 1936 dollar at $28 in fine condition, so slightly above silver bullion value, and upwards of $60 in uncirculated to $850 in MS65(high grade uncirculated). The 1923 shinplaster 25 cent banknote goes for about $10 - $25 in fine (depending on signatures) to around $750 in uncirculated (no folds, creases, marks etc.)
You could shop them around to coin dealers, but understand that the above prices are what you would pay them, not what they will pay you. You could also put them on
ebay or kijiji.