Sennacia Banko is a bank issuing the currency Mono (meaning "money" in Esperanto) intended to become the single world currency. It is organized by unofficial Esperantist organization Heliko (meaning "snail" in Esperanto), founded by Daniel Salomon. Sennacia Banko currently distributes the mono online through eBay

EBay

eBay Inc. is an American internet consumer-to-consumer corporation that manages eBay.com, an online auction and shopping website in which people and businesses buy and sell a broad variety of goods and services worldwide...

 and Paypal

PayPal

PayPal is an American-based global e-commerce business allowing payments and money transfers to be made through the Internet. Online money transfers serve as electronic alternatives to paying with traditional paper methods, such as checks and money orders....

.

Mono

The only mono bill in circulation is the M100 (100 Monoj), featuring a picture of Ludwik Lejzer Zamenhof, the creator of Esperanto, on one side, and a snail, representing Heliko, on the other.

At launch the mono had a pegged rate of M100 = ¥1000, or M1 = ¥10. As of 2009, the value is determined by the price for which the money sells.

New bills in denominations of M200 and M500 are anticipated.