FYI ... these items are from the 1974 National Geographic article by John McPhee. You can get the complete magazine for the same price or less so I would recommend you not bid on them.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=180171304212&ssPageName=ADME:B:SS:US:1123
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=180171303404&ssPageName=ADME:B:SS:US:1123
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=180171330551&ssPageName=ADME:B:SS:US:1123
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=180171331608&ssPageName=ADME:B:SS:US:1123
Guy
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=180171304212&ssPageName=ADME:B:SS:US:1123
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=180171303404&ssPageName=ADME:B:SS:US:1123
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=180171330551&ssPageName=ADME:B:SS:US:1123
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=180171331608&ssPageName=ADME:B:SS:US:1123
Guy