hi, look at this! for "sepia"

A dry brownish enamel decoration, probably cobalt oxide without the addition of any or with very little flux, making it very susceptible to wear. It occurs on Chinese export porcelain from at least the 1740s up until the 1760's after which it appears to have gone out of fashion. By the end of the Qing dynasty this type of decoratio enjoyed a revival on art porcelain. Very few objects with this type of decoration remains, with its decoration still in good condition.

所有跟帖： 

• 个人认为帆红和sepia的区别：帆红很薄，结实。sepia是釉上彩，很脆弱！ -回家路- ♂ (0 bytes) () 01/28/2014 postreply 11:05:38

• 再谢谢回家兄，矾红也是釉上彩啊，，wiki里有色彩表，sepia偏brown,,我猜 -满枝- ♀ (137 bytes) () 01/28/2014 postreply 17:46:58

• 满枝厉害！我对比了我的其它帆红瓷器，我承认这件是帆红！应是乾隆年间！多谢！ -回家路- ♂ (0 bytes) () 01/28/2014 postreply 18:48:32

• 也谢谢回家兄的认真，这下好了，我们两个都清楚了：） -满枝- ♀ (0 bytes) () 01/28/2014 postreply 19:55:11

• 是的。矾红是iron red. Sepia是氧化钴。sepia发黑褐色！满枝请纠正！ -回家路- ♂ (0 bytes) () 01/29/2014 postreply 06:03:02

• 谢谢回家兄的谦逊，大家共同学习，，，嗯，看颜色，如果实在拿不准，可以google图片，如果很多图片 -满枝- ♀ (99 bytes) () 01/29/2014 postreply 09:18:08