What is the value of a coin with no dates just a penny on one side and a dime on the other?
This is a magician's trick coin made from two legal tender coins. While you might be able to sell it on eBay for more than "face value" (one cent, 10¢ or 11¢), it has no numismatic value. It has no special value. They're manufactured for magicians. You can buy them at most magic shops.
What is the value of a 1857 coin it is roughly the same size as a old one penny with queen victorias head on one side and the brittania pose on the other side it is in good condition?
There's no such coin as a "two cent penny" because a penny is either a 1p British coin, or a 1-cent coin in the US, Canada, and several other countries. If you have a 2-cent piece with a map of Europe on one side and a picture of the Netherlands' queen on the other, it's a common circulation coin worth face value only. If you have anything else, please post a new question with the…
No such thing as an 1817 Canadian penny. Canada wasn't formed until 1867, prior to that, coins had the name of the province on them. The earliest I can find in my coin catalogue dates to 1861 from Nova Scotia and New Brunswick. A 1917 penny, in good condition is worth from .20 to $125 for a pristine, certified quality coin.