This is one piece,  U. S. Military issue, RVN (Republic of South Vietnam) Technical Service Medal, 2nd Class Ribbon Slide, in brand new (never issued) direct from government contractor condition. What you see is what you get. 

This ribbon slide was made by Wolf Brown (owned by Vanguard) as a TIOH Institute of Heraldry Sample use by U.S. Military Advisor Forces. They were issued to U.S. Military or made available in AAFS stores.   What you see is what you get.

The United States Army Institute of Heraldry, also known as The Institute of Heraldry (TIOH), (from 1918 to1960 as the Heraldic Program Office) is a Department of the Army that furnishes heraldic services to all the U. S. Armed Forces, U. S. government organizations, including the Executive Office of the President, in the development, standardization, quality control, and approval of all symbolic items, such as unit insignia, badges and awards.  Samples are required for final approval, and are made by contract to various authorized manufacturers. In the case of embroidered insignia, the standard machine run of 280 pieces, far exceeded the TIOH contract, and are produced at a loss by the contractor. Therefor most authorized manufacturers didn't bid on these contract, since the only advantage was to have stock on hand if the item was approved.

NOTE:  I will combine shipping cost.   

Nice insignia for any collection.  What you see is what you get. Having sold my U. S. Military Insignia business (H. J. Saunders U. S. Military Insignia, Inc. - America's Largest Retail Insignia business) after 35 years, in November 2003, I am now selling my personal collection, many of which are government contractors samples, accumulated over the last 50 years.