古易斷時言 A Japanese treatise on I Ching. Thanks to @sforrest for pointing this out! 1,2 https://t.co/XPR6B6ZeRD 3, 4 https://t.co/CwHmRKJy5C https://t.co/2GC83UBc8U

@edwardW2 and then also a slightly older copy, woodblock printed, on NDL in two parts but with all four volumes, here: https://t.co/aql15yonOf (vols 1-2) https://t.co/5fBClMBiET (vols 3-4) The Keiō one still looks very interesting because of all the marginalia--amazing!