This term is commonly used in referring to older firearms ( pre 1940 ) manufacturered in Spain & Belgium.
They were produced by a co-operative of small independent shops who made only certain specific parts. These were later assembled and finished at a central factory. When the guns were sold, the profits were distributed, accordingly.
Hello a GUILD whether knifes guns jewelry etc is a group of craftmen who accept members only after they prove their work is up to their level some of the greatest gun are made by these people most are hand built.
Here are some examples of guild guns, specialist in different fields contribute their talents to a collective project for fund raisers and charity.....please wear a bib when viewing, keeps the drool off your monitor.
This is one of the better and probably most simple explanations:
One explanation is, the gunmaking apprentices were required to make several examples of arms to exhibit their skill to the Guild examining board before the board would certify that they were qualified as gunsmiths. These are usually called "Guild guns" and are frequently unmarked as to the individual maker. Another source said that guild guns don't command very high prices due to their nature.
In essence, they were the final exams for entry into the gunmakers guild.