AE 21 mm, 8.29 g, 12h, Antioch mint
O: Diademed hd of Antiochus XI r, bearded, diadem ends falling straight behind, dotted border.
R: BAΣΙΛΕΩΣ ANTIOXOV in two lines on r., EΠΙΦΑΝΟVΣ ΦΙΛΑΔΕΛΦOV in two lines on l., Athena stg. l. holding Nike outside inscription and resting hand on grounded shield, spear propped in crook of elbow.
Control: outer l. above bunch of grapes (which are off flan).
Here was a link to an example, the only one located on Coinarchives regarding this type, sold by Elsen in 2007: http://www.coinarchives.com/a/lotviewer.php?LotID=188913&AucID=243&Lot=385
As of 07-15-09, Link is no longer active without membership to Coinarchives Pro. Coin can be viewed at Petr Veselỳ's site (cf. links). Coin brought about € 950, which was about $1,317 at the time. Peter Veselỳ's site link for these coins is: http://www.seleukidtraces.info/collection/antiochos_xi#fn_elsen_93_385
And a link to an example sold by CNG in 2008: http://cngcoins.com/Coin.aspx?CoinID=133920
Example from BMC Seleucid (1878)
My example as well as one other are featured at Wildwinds: http://www.wildwinds.com/coins/greece/seleucia/antiochos_XI/t.html
The example shown in SMA appears to be different from the BMC example though the photo is poor. According to SC there are other examples SNG Fitzwilliam 5820 and in the T. Miller Collection as well. Unfortunately, the SNG on line identifies 5820 as a tet of Demetrius III, and identifies 5819 as Antiochus XI though it is in fact a bronze of Antiochus X [SC 2432 v](note link): http://www.s110120695.websitehome.co.uk/SNG/sng_reply2a.php?verb=SNGuk_0408_5819
The ANS lists a bronze as Antiochus XI, though from the description it appears to be an Antiochus VIII from the inscription. The coin reference is ANS 1992.54.2151
There are three examples listed in the Catalogue of Greek Coins in the Hunterian Collection; University of Glasgow, III weighing in at 7.419 g, 7.9 g and 8.42 g respectively. They do not appear to be plated in the catalogue, though are described as "slightly bearded".
In Anatolian Studies, Vol. 23, Aşvan 1968-1972: An Interim Report (1973), pp. 187-190, Anthony McNicoll writes of a find that was identified as "?Antiochus XI", but is clearly an Antiochus VIII likely SC 2318 example.
This raises the census to 9 (?) of the SC 2442 variety. Likely more out there?
Update 9 April 2015- An online auction Solidus Numismatik On-line Auktion 5 (26 April 2015) has an example LOT 111 identified as SC 2442 but may be the beardless variety. It is 21mm and 9.44g. This appears to be heavier than the previously recorded examples by about a gram.