Reddit reviews The Diary of a Manchu Soldier in Seventeenth-Century China (Routledge Studies in the Early History of Asia)

Haha, even if it would be lying to say that there's an endless supply of material, there should still be plenty to read even without the government stuff. Here are a few titles that are easily available.

^(And you got me curious there, what is this 100-200 speakers language? :-))

Diaries

• Di Cosmo, Diary of a Manchu Soldier
  
• 闲窗录梦, diary of a Manchu bannerman in Beijing during the first half of the 19th c., very everyday life (walks, visits to friends and temples, shopping, meals, events in the neighborhood, etc)
  
  Supernatural
  
• Liyoo jai j'i i, a 1848 translation of 128 stories from Pu Songling's Strange Tales
  
• Donjina, more "strange tales". You can read The Righteous Elephants and The Injustice of the Silk Thread in transliteration and translation on the MSG website
  
• Nišan saman, facsimile and transliteration of one version of the tale here
  
• Sidi Kur
  
  Science
  
• an anatomical treaty in Manchu (with illustrations), based on a European work, translated in Manchu by a Jesuit missionary; a more complete copy can be found here (click on "Voir le document") but it is not downloadable
  
• a forensic science treaty
  
• two medical works at the BNF
  
• maths in Manchu
  
  Children books
  Check this page for the 1992 and 2006 editions of 锡伯文小学语文, these are the language textbooks used in Sibe primary schools. They start with the alphabet and then move on to short texts.