14 gauge shotgun shells have not been commercially available in the US since the 1920's and there probably hasn't been a gun chambered for them made since WWI. If you want to give a little more information - like all the writing and symbols found on the gun, I can probably tell you a bit more.
http://www.histandard.info/PDF/Sears%20Shotguns.pdf
Very late in the 1800's
Assuming this is a firearms question- the 14 gauge shotgun is very rare today. The bore diameter is smaller than a 12 g, larger than a 16g, and runs ABOUT 0.695 inches. That converts to about 17.65mm. If you are seeking to convert wire gauge, or sheet metal gauge to mm, please repost with that information.
50-100 USD
50-100 or so
The value of a London Fine Damascus 14 gauge double barrel shotgun marked JT Sang Ford depend on its condition. This gun in excellent condition is valued between 225.00 and 320.00 as of 2014.
if it's 14-gauge then it's 14-gauge.
You should use a taper. You can probably find these at a piercing studio. It is important to first stretch it to a 16 gauge, and then to a 14 gauge about a month later to prevent tearing.
There were a very few 14 g Mdl 59s made by Winchester. It is an extremely rare gun.
I am not sure on the price because i am also looking for a price for i have a full box of FMC 14 gauge shells #7.5 shot. If interested e-mail @ jjbct@hotmail.com
Tongue ring gauges typically range from 14 to 00 gauge, with 14 being the most common size. The larger the gauge number, the smaller the diameter of the barbell. It's best to consult with a piercer to determine the right size for you.
563 14 is not a 12 gauge it is 16 gauge it was made in 1948 by high standard in good or better condition should bring between 50 and 125 bucks