I have a similar coin I have identified as PTOLEMY IV. I don't think they are the same, but close. PTOLEMY IV AE36 OBVERSE: Diademed head of Zeus Ammon right REVERSE: PTOLEMIAOU BASILEWS, eagle standing left on thunderbolt, looking back at cornucopiae under right wing Struck at Egypt 221-205 BC 46.4g, 36mm SNG Cop 221
Thanks to the reference from ID 1 from TIF Ptolemy III Alexandria EPSILON or LAMDA or 'Plain' Series 4 This denomination series consists of at least 7 coins that comprise a denomination series for which most sizes exist as both EPSILON and LAMDA monogram types. The two largest sizes are also known in 'no monogram' types. The E monogram types are also well known to exist in some variations with closed loops at the top of the E and similar morphologies. The 2nd size E monogram (Sv974 and variants of the E morphology) coins are very plentiful, among the most common types of Ptolemaic bronzes. The third size is a denomination only recently discovered through metrological analysis - a 20-chalkous (2.5 obol) coin. The data are quite conclusive on this; the coins average about 28.5 grams, far less than the 'expected' weight of 34.2 grams were they actually hemidrachms, as they have been previously catalogued in all reference works. Here are shown a mix of both of the most prevalent monograms (E and LAMDA) to illustrate the full denomination series. Lorber has attributed these coins to the early part of the reign of Ptolemy III while some other references differ. Sizes and weights shown here are the 'nominal ideal' for the types. Actual sizes and weights may vary somewhat due to the striking and manufacturing technology at the time. The idea here is to present the coins as a coherent series. You may also view these same coins with detailed information about each one elsewhere on the PtolemAE Project web site. In the following tabular presentation, the following indicate monogram types: E = EPSILON, L = LAMDA, nm = NONE.
For some odd reason I have the urge to eat an oatmeal cookie after I stare at your coin for too long. Nice coin!
