In the second image you can see an unbroken rehearsal in a regional school. However, I have difficulties connecting this type of rough stone with production facilities in China. The majority of the articles only refer to vitrified tiles in connection with large packs. In parts of Southeast Asia, however, faience glasses seem to be quite widespread.
Are you suggesting that it could have originated in Southeast Asia, given China's vast trading relations and slave population? I would really think from the appearance of the different pieces in the above image that they could come from several different places, some of them possibly from China.
It is interesting that the glass on the second image does not appear to me to be "identical" to the broken glass, or am I not? There are often very small discrepancies between these warehouse and exported glasses, so everything matters. When you are looking for a China stoneware spring, I would like to recall the Han ceramics, which are often coated with a blue stain.
It seems that this type of product has a long history, even though it was replaced early on by the use of enamelled verdant "proto-porcelain", i.e. masonry. Formerly Sawankaloke in Thailand - now Si Satchanalai - also produced glasses with a vitreous clay compound similar to your name.
The rivers allowed entry to the harbours on the Bay of Thailand to India, Japan, Indonesia and Arabia. It is an interesting issue because there were few trials and the glasses were obviously used and re-used until they cracked. For me it would be most interesting if you were able to determine some properties of your glasses and combine them with a certain age.
This is because we really know very little about these giant glasses and that they are still today still remarkably tough, and that they are eventually all known as " Martabans", although many of these glasses could actually have been produced throughout Asia. Probably all traders, in the harbours along the South China Sea of Korea/Japan along the Fujian coastline, around the Southeast Asia and along the eastern side of the Bay of Bengal and around the Arabian Sea, had their supply glasses produced there.
Out of all the major harbours with ceramics nearby, such as Hangchow, Swatow, Amoy and Canton in China - and Martaban in Myanmar (formerly British Burma), Martaban is the most important from a historical point of view, as it is specially linked to large reservoirs. "Martaban " is the traditional name that has long been used by all trade countries, Asian and European, for a harbour in the eastern part of the Irawadi Delta.
Martibaan was known for his trading of giant stock glasses, mangles, towels and foods, salts, pickled peppers, lemon and Mango, lumber and swill. Martaban became a synonym for the name of the glasses themselves. Martaban's, or Pegu glasses, are found in occidental literature at least from the sixteenth cent.
Both of them were exporting as such and kept all sorts of supplies such as drinking and drinking watermelon "of a magnitude that two men were needed to transport when they were empty". It also appears to serve as watertight and pest proof boxes for the storage of all types of foods, supplies and merchandising.
In order to obtain a possible match with your findings for a project on "modern Martian ceramics production", it was proposed to me that "Scott, Gazetteer of Upper Burma, 1900, Pt. i. vol. ii. 399 sq. "To find out exactly where all these genuine "Martaban" glasses were actually made, however, one has to do something, because I think that would require an exploration of the Salwen which flows into the ocean near the old Martin.
I' ve added a painting of something I believe to be an authentic Myanmar "Martaban". This pasty coloured compound is remarkable even, which proves that the native tone - without temperature control with grit - was suitable for large glasses. Jan-Erik, I was reading your commentary on Martavans and other glasses with great interest.
I' ve gathered some of the glasses found in Indonesia and the Philippines, but I' m not an authoritative person in this field. The first one here in Indonesia by Sumarah Adhyatman, "Tempayan Martavans", 1984, Jakarta, which deals with the finds in Indonesia, the second one in Manila by Cynthia Valdes, "Storage Jars". There are two comments on the subject: 1) These glasses were used both on boats and in houses (they are still used today and are made in Singkawang near Pontianak by a group of traditional pottery makers who migrated from China to Borneo a long while ago).
Hispanic galleons, who went from Manila to Acapulco, had a great need for such glasses, and on the wrecks found, as you rightly said in your statement, glasses from all of Southeast Asia, inclusive of China, were found. 2 ) There are clearly two types of glasses that are unadorned or adorned with shared motives (dragons, cathedrals, icons and emblems) and clearly made for use.
There are glasses made in very delicate qualities, enamelled in several colors (up to five) and also used, but probably inside the house and used as decoration or urns at the same as well. I' ve seen such nice glasses, which bring in over five thousand bucks, if they are not broken and well ornamented.