A folder with eleven antique pith paper paintings of boats, Ca. 1820, China, Eleven fine watercolour paintings of various Chinese boats (mostly sailing boats). Each with a simple light blue silk frame. The set comes as loose leaves in an antique binder and has been in the same family since the 19th century when the set was acquired in the then Dutch East-Indies (present day Indonesia). Each painting ca. 24 x 18.5 cm,