| Ancient Coins Auction Catalog,H.J.Berk,May 24,2007 |
| SUPERIOR'S PRE LONG BEACH AUCTION CATALOG MAY 29-31, 05 |
| RA Siegel Auction Catalog Sale No. 760A May 28 1994 |
| RA Siegel Auction Catalog Sale No. 845 May 15 2002 |
| RA Siegel Auction Catalog Sale No. 778 May 22 1996 |
| RA Siegel Auction Catalog Sale No. 863 May 31 2003 |
| RA Siegel Auction Catalog Sale No. 742 May 12-13 1993 |
| RA Siegel Auction Catalog Sale No. 861 May 15-16 2003 |
| RA Siegel Auction Catalog Sale No. 860 May 14 2003 |
| RA Siegel Auction Catalog Sale No. 789 May 7 1997 |
| RA Siegel Auction Catalog Sale No. 790 May 8-9 1997 |
| RA Siegel Auction Catalog Sale No. 811 May 15 1999 |
| RA Siegel Auction Catalog Sale 766 May 4-5 1995 |
| RA Siegel Auction Catalog Sale 766A May 5 1995 |
| RA Siegel Auction Catalog Sale No. 800 May 9 1998 |
| RA Siegel Auction Catalog Sale No. 824 May 13 2000 |
| RA Siegel Auction Catalog Sale No. 750 May 5 1993 |
| RA Siegel Auction Catalog Sale No. 934 May 9-10 2007 |
| RA Siegel Auction Catalog Sale No. 859 May 13 2003 |
| RA Siegel Auction Catalog Sale No. 846 May 18 2002 |
| RA Siegel Auction Catalog Sale No. 862 May 31 2003 |
| Ethnographic Arts auction catalog #7128 May 2000 |