It looks like the small one to me. The big "four" variety is actually quite scarce - probably 20x more scarce than the common one. A VF grade was selling for more than 300USD a couple of years ago if I remember correctly - now I can't even find ANY for sale.
My partial coin collection http://www.omnicoin.com/collection/gxseries
My numismatics articles and collection: http://www.gxseries.com/numis/numis_index.htm
Regularly updated at least once a month.
My numismatics articles and collection: http://www.gxseries.com/numis/numis_index.htm
Regularly updated at least once a month.



















