Your photos don't really show this but experience says it's not even close to a Mint error. The T in Trust is faint or missing from a grease filled Die, which is very common. The R took a hit and bent the lower right leg of the R into a B. Copper is soft and is easily moved on a coin. Welcome to CT.
If you're willing to learn and don't mind hearing the truth about coins you post then this is the place.
No it is not. In your future threads please show us full pictures of the front and back of the coin. This will give more clues as to what my cause the issue you are looking at. For example, your first coin looks like a Copper plated zinc cent. They have plating issues such as plating bubbles and blisters. That could be the reason the R looks like a B Welcome to CoinTalk
Is a coin like that worth anything if it has doubled images or parshal images in the dark spot like double die on the front of the coin
It’s only worth a quarter. As best as I can tell from your photos, there is no doubling or extra images. What you are seeing is due to normal wear and whatever stain is on the coin. In the future, take pictures of the coin head on and not on an angle. Welcome to CT