This is 2 Original Kaman Helicopter Illustrated Manuals USN HTK-1 Parts + USAF H-43A Maintenance .. H-43A maintenance is missing cover page , otherwise both manuals are in clean excellent condition .. See attached photos for condition .. $6.50 media class shipping .. If you purchase more then one item from me , wait until I send you an invoice and I will combine shipping costs for savings .. See my other auctions for other vintage military and aviation books , manuals , magazines , photographs , brochures , pilot and aircraft items ..