It's an interesting coin. The last time this coin was auctioned, my dealer mentioned that there is some disagreement among experts about its authenticity. Is this your coin?
Could have fooled me -- you never really know who might own certain coins and also frequent this website!
I believe the Eid Mar aureus is still on loan to the British Museum. You can other coins from the gentleman who owns it here: https://www.flickr.com/photos/ahala_rome/albums/72157633921108247
I'll never quite forgive him for outbidding me on the Fulvia portrait; the Mussidia denarius, not the quinarius.
I purchased a coin related to Julius Caesar in the CNG e-auction that closed today so no better day to share it I suppose: Roman Imperatorial period AR denarius(4.04g, 18mm), L Hostilius Saserna, moneyer, 48 B.C., Rome mint. Diademed female head(Pietas or Clementia?) right, wearing oak wreath / Victory advancing right, holding winged caduceus and trophy. Crawford 448/1a; Sear HCRI 17; Sydenham 951; Hostilia 5. Ex Lawrence D. Sporty Collection, ex CNG e-auction 259, July 6, 2011, lot 287 The moneyer, using the same obverse as that on Caesar's military mint issue of the same year, Crawford 452/2, and a reverse of Victory carrying an obviously Gallic trophy with a Carnyx and shield, is showing his support for Caesar and referring to his victories over the Gallic tribes. This coin also has a feature that I've been looking for a good example of for a bit: the bumpiness of unstruck areas of Imperatorial-era flans. I chose this example because it illustrated the interesting feature without detracting too much. Notice on the bottom of the obverse bust's neck the four dots. These are some sort of remnant from flan preparation and appear often on unstruck or weakly strck areas of Imperatorial flans though I am not exactly sure what they are.