From the renowned Mint of Poland comes the ultimate in coin designs. What you will see will amaze you, because you won’t see anything at all. Intrigued? Be sure to read more here.
Hold on a second. How do we know it's really invisible? What if it was struck on a missing planchet? I'll post a link to that as soon as find it.
Here you go: https://www.google.com/url?q=https://groups.google.com/forum/m/#!topic/rec.collecting.coins/EBCzveKQvwc&sa=U&ei=BCkcVcTCD821ogShjYLwCQ&ved=0CAsQFjAA&sig2=u3E9kQ18miXFiB9xiNliBA&usg=AFQjCNHSD6lF_Ayfn-MPaIckaPs6FBeskw
I am not sure, but when you pre-order the invisible coin today, you stand to receive 500 ml of free Stumbras Bison Grass Vodka. This applies in terms of the first 5 orders only.