I retrieved some documents in 2017 from some site online as well. I didn't bookmark the link.
I put them in the torrent here.
http://www.hpmuseum.org/forum/thread-9090.html
Code:
hp_calc_torrent/calc_related_documents/valentin albillo pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA001.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA002.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA003.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA004.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA005.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA006.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA007.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA008.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA009.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA010.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA011.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA012.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA013.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA014.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA015.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA016.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA017.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA018.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA019.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA020.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA021.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA022.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA024.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA025.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA026.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA027.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA028.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA029.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA030.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/DatafileVA031.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/HP-15C-MC-BitsOfPi.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/HP-15C-MC-ImpossiblyShort.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/HP-15C-MC-Sin.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/HP-15C-MC-SpeedingItUp.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/Mini-Challenges-Valentine_Day.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/SSMC-10-Counting_beans.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/SSMC-11-Whos_Next.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/SSMC-12-Squaring_Cubes.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/SSMC-13-Adding_up_to_infinity.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/SSMC-14-Cooking_Conjectures.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/SSMC-15-Spring_2006_Special.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/SSMC-16-ThinkingSquare.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/SSMC-17-The_Feast.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/SSMC-18-2007_Spring_Special.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/SSMC-19-Surprise.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/VA archimedes cattle problem.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/VA complete solution 5th grade polinomial.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/VA computer scientist and floating point arithmetic.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/VA on lambert-w function.pdf
hp_calc_torrent/calc_related_documents/valentin albillo pdf/va example patterns and conjectures.pdf