Top marble ... not sure ... maybe a slag or an Akro corkscrew or ??? ... more views would be needed for an ID ... but it has several dings, so it probably doesn't have much monetary value.
Next marble looks like a West Virginia Swirl. Sort of a generic marble.
Third is a Vitro All Red -- a very common marble.
The last looks like maybe a slag, also I think with damage.
As I said in one of the other posts, I think $75 is probably a fair offer. It's possible though that someone else will look your marbles over and see something they would consider a steal at that price, so wait for a second opinion.