The 14th Infantry Regiment is a United States Army light infantry regiment. per Wikipedia: their nickname is the Golden Dragons. They have been active from 1861 to present.
This pin is marked on the back M.S. Meyer and has the number 9M. Per the Office of Heraldry letter / number code hallmarks, a single letter / single number code was used between the years of 1960 to 1965, so this pin should be from the Vietnam War era.
The pin is part of a large collection of insignia pins that I purchased at an estate sale. It is attached to a small thin cardboard square. Any writing on the cardboard was put there by the previous owner and that's great because I can't imagine how long it would take me to look up and obtain information on over 700 pins. I'm using his information. He was the expert, so hopefully the information is correct.
It measures a little over an inch. It has the motto "The Right Of The Line". The back has a double clutch holder.
Buyer to pay USPS First Class Mail parcel delivery charges of $3.99. Shipping is from Nevada.
I do combine shipping on multiple items purchased. However, my web host is not set up to calculate multiple item shipping costs. At checkout, you will be charged full shipping price on each item purchased and I will refund the appropriate amount of over payment.