I don't know anything about the dispenser, but there's been several previous threads on Ohio Tax Stamps before. Some were issued in roll form; others in booklets. Here's a link to one of several previous threads:
https://goscf.com/t/6383As I understand it, the tax stamps were for all retail purchases in the State of Ohio. Even if you went in for a major purchase and bought, for example, a new car, you would be given tax stamps of the appropriate amount. Sure, they're collectible, but the sheer volume of them that were produced means that they have very little, if any, value, except perhaps for the collector who is looking for certain varieties.
They are essentially grouped as a back-of-the-book item as State Revenue Stamps.
Edit: I maybe wrong, but I recall reading somewhere that these stamps were at checkouts in dispensing machines similar to trading stamps (S&H, TV, Plaid, etc.) that would enable the cashier to dial in a certain amount of stamps that would be dispensed to the customer. The look of the "dispenser" in the the initial
ebay listing here, looks as if it were either an early version of a dispenser or a specialty item contrived for use by a merchant.
No matter, everyone seems to agree that it was a very cumbersome and tedious means of proving the collection of Ohio State Sales Tax.