I understand that this coin is arguably a distinct regional issue intended for use only in kwangtung (though I frankly have not seen evidence that these were part of a distinct system of coinage different from the rest of the dynasty). However, even though this specific large type coin is categorised as a kwangtung regional issue, other variants like N#17768 (N#17768) or N#22475 (N#22475) are not. These are also all categorised the exact same in Hartill's Cast Chinese Coins and zeno.ru. I'm not sure what makes this one special compared to the rest to deem it a regional issue.
Furthermore, it is not like other provinces did not have similar treatments for guangxu tongbao and xuantong tongbao. Tianjin, Fujian, Jilin, Jiangsu and Wuchang all minted very similar distinct examples for the Guangxu tongbao. Why not categorise these as regional issues too? The same logic can be applied to Xuantong tongbaos; none of them are categorised as regional issues. Where is the line drawn?
Thanks all.