It says "SCOFILL MF'G CO WATERBURY" It has a circle of dots in the middle inside of the printing. There are no other marks such as stars. It is maybe 1 or 2 mm bigger than a US nickel.
Hmm..great seal button did not have a rim until 1910 if memory serves...and sometime during ww2 they changed part of their name..from company to companies..so as your button says 'Co.' it means 1910 to 1945 or so
Look again. The back of his button has the ring of dots. According to that site, the 1902 - present is plain (no dots) and 2 stars. I don't see his exact button on that site.
Look again. The back of his button has the ring of dots. According to that site, the 1902 - present is plain (no dots) and 2 stars. I don't see his exact button on that site.
Waltr is correct. It is a Great Seal button. It first came into use in 1902 and is still being used today. With some better pictures it might be possible to narrow down the date. In the pics of the reverse it looks black. They were black or gilt from 1910-1917. From 1917-1923 they were black only and gilt thereafter. If it can be determined that it was black, you have that date range. Hard to tell from the pictures.
Look again. The back of his button has the ring of dots. According to that site, the 1902 - present is plain (no dots) and 2 stars. I don't see his exact button on that site.
I read their 1902-present and photo as the front of the button and generally the back.
Simply by having the Great Seal the button is 1902 or later regardless of the back marks.
I'm sure they also pressed into service some older dies to meet production requirements during the two big wars. So back marks may not be the end all for dating.