Private collection, Germany. Nagel Auktionen, 'From the Scholar's Studio, 88 Objects for Use and Inspiration', Stuttgart, 6 June 2005, lot 238. Private collection, America, 2005-2013. Nicholas Grindley, London, June 2014.
There are a number of nineteenth-century artists that used the hao Xiaoquan, but none of them is recorded as a bamboo carver or even necessarily a painter of bamboo.