A coin very near and dear to my heart !
Twenty five years ago I also became entranced by a beautiful example. But being a cheapskate by nature never would have forked out the necessary treasure to obtain one like it.
My old friend 'Lou' (formerly associated with Munzen und Medaillen GmbH) dangled the prize before me and made the proverbial offer I could not refuse .....
"Take it home .....
If you like it send me $100 a month
If not
Bring it back 6 months from now"
I was trapped ! He played me like a cat plays with a mouse !
But I never regretted it either.

Something interesting is going on in this depiction. Exactly what I never figured out !
The building is long gone and is only known from this depiction on the coin.
But the Romans had experimented with different methods of showing perspective. The coins always show one wing (right side) lower than the left. I also notice that what at first seemed like a double strike on the dome appears on most if not all the coins I see.
Two domes perhaps ?
The market is said to have been a place to buy meat and fish. I would imagine a large amount of water would have been needed for sanitary reasons and ...... who knows perhaps live fish ? The live fish idea has always appealed to me as having once been in Rome in July the heat was incredible and downright oppresive. The thought of "fresh fish" laying about the market place seemed improbable if not downright revolting.