As some of you already know, I have got the bug hard. I really liked the idea of uncleaned coins and then attributing them so I ordered some on Monday and received them yesterday. They have been sitting in some distilled water and after a light brushing with a toothbrush and a dental pick to get some crud off I have managed to pretty closely ID 1, which is a Gallienus, Radiate Head Right, Doe walking right, looking left. There is still a lot of crust on it so it will soak some more. The one I can't find is this (I'm not even sure it is oriented correctly) I looked through tesorillo and it wasn't there. I am assuming that it is older than what they have on their site (Like the Gallienus was). It seems to be a crescent over/next to a dot, inside a square. Right now, the obverse is still covered in crud and I can only barely make out a bit of a nose and lips. This coin is smaller than a dime. Are there any good reference sites that have earlier Roman coins that is kind of set up like tesorillo?
you have it sideways...it's a Claudius II consecratio reverse with an altar. the size and apparent crudeness means it is likely unofficial. These were frequently copied.