I've never seen anything like it and I presume it to be a modern fantasy erotic piece rather than an Ancient coin.
Not true colleague, not contemporary erotic piece! Just a very rare coin! Here see here: http://www.lanzauctions.com/showcoin.php?no=616487670
I'm not willing to accept Lanz as an expert opinion. They have gone far down hill in the past years. If, however, theirs is genuine, yours still looks different in style and fabric to the point that I doubt it more. This is way over my level of expertise. Such a coin needs to be shown to a top level expert. In the US, I'd send it to David Sear. In the UK, I'd ask the British Museum. I have no idea who to suggest in your country.
In our country these things are prohibited!And who owns them is punishable by zakona.Zatova no experts to them ottsenyavat.Izkarvame them from the country not zakonno.I therefore no official experts. There still is Communism and mafia in government.
it really looks like a modern replica to me, even compared to the picture of the other coin that was up for auction. it's certainly interesting, i had no idea the type exited.
http://www.ancients.info/forums/archive/index.php?t-2271.html The Lanz coin was discussed above in 2008. Be sure to read to the end where the question of authenticity comes up. I don't know. I am not able to be rational regarding anything Lanz offers since my last purchase from them ended in my paying but receiving no coin and no reply to inquiries. Recently they have been selling many obviously tooled junkers. If I found it in the dirt, I would suspect someone threw it away. These coins do not look right for bronze. Over the N on K's reverse it appears the exergual line has bent down revealing white pot metal/lead below. I suspect a test would reveal the copper look to be paint over lead/pewter/zinc.