Your getting some good advice which you shouldn't take lightly...
And also remember...moms run the world
If you are serious about selling coins or tokens, make yourself a business plan and list your assetts, the lowest real grade of each coin, the reasonable market value, then create a plan on how you want to sell your product. Selling may take several avenues such as Ebay, Coin Shows, Bid Boards and the like.
Always assume that you will scammed or ripped-off...with this in mind, you need to determine how you protect yourself from this eventual hazard.
Start small and build up as you grow.
Know your product.
know grading and current values.
When you make a trade or sale, do not jack your prices...you want yourself and the buyer, both, to feel as if they made a reasonable deal.
You will find that most of your business will be repeat buyers...and if you get too pricey, you will lose a potential buyer and word-of-mouth will kill any future business.
You want some good, sound, advice...ask anybody who responded to your post.