The second Estonian kroon currency was introduced in 1992, after Estonia gained independence from the USSR. The kroon was subdivided into 100 cents (senti; singular sent). The twenty senti coin was a small circulating denomination.
The first two issues were in Aluminium-bronze; this was then changed to nickel-plated steel for the issues from 1997 through to the last issue in 2008.
Coins issued in 2006 circulated for only five years until 15 January 2011 when they were demonetised and replaced with the Euro, when Estonia joined the Euro currency.
The obverse depicts the three lions passant gardant (walking to left, facing the observer) of the Coat of Arms of Estonia. The date 2006 is divided by the lions.
At centre, the numeral value 20, below that the denomination SENTI. Around above, · EESTI VABARIIK · (Republic of Estonia).
The Stuttgart Mint coins are not listed in Krause.
Online sources list a "smaller date" and "larger date" varieties, these being respectively coins minted by the Finland Mint and the Stuttgart Mint. On the "smaller date" type, the digits of the date on the obverse begin over the lion's feet. There is a serif on the number 2, while on coins minted at Stuttgart the number is plain.