Postby dragonflywink » Tue Oct 19, 2021 1:25 pm
What you're referring to on your link to Giorgio's site is just examples of Gorham's trademarks with the dating of the item they were found on (the site does have the date marks on a separate page), various pieces produced in the same year could have the trademark stamped with a different punch.
Gorham was a very prolific manufacturer, there were an untold number of punches cut and like most makers, the marks would have variants, so dating by a particular stamp of the trademark isn't feasible, though the general forms of the trademark were known to be used in fairly specific time periods (they weren't always consistent in their marks). The 'outlined' form of the marks came into use around 1898, the year they instituted many changes in their codes, but it was not the only trademark used in the 20th century, there were other forms, including one that originated in the 1870s.
The late Sam Hough, who organized and researched the Gorham archives, noted that they produced so many special orders and samples that the letter codes were repeated, with the same letter combinations used on different items - some of the production codes instituted in 1898 went out of use within a few years, and most, if not all, were out of use by the early '30s.
~Cheryl