Hi Peter, Thank you for all your prompt response
can you please tell us, What is the marking ?
Any help would be appreciated!
Newer item using chemical colors, made in 20th century or later.
Peter, could you please expound on chemical colors, thanks
>expound on chemical colors
Hi Stan,
Not much to say except that chemical colors are factory manufactured (although these artificial colors also might have contained mineral pigments), while the others were gound, mined minerals.
In the early 20th century manufactured pigments started replacing the mineral color pigments. The newer colors were stronger and brighter, but there were some color hues that were not existing or little used before. An example of these is olive green. The type of green this sample shows also points to manufacturing in the 20th century.
Sometimes it is not necessarily the color itself that is different, but some colors would have been more translucent with the earlier ones, because there application method was different, etc. Thick enamels can also point to a later date, sometimes.
Thanks Peter for explaining that.