2020年11月１日。
佐倉城址*1。
国立歴史民俗博物館*2。
*1:See also https://sumita-m.hatenadiary.com/entry/2021/04/10/153422 https://sumita-m.hatenadiary.com/entry/2021/06/22/004802
*2:See also https://sumita-m.hatenadiary.com/entry/20100309/1268150258 https://sumita-m.hatenadiary.com/entry/20100822/1282499634 https://sumita-m.hatenadiary.com/entry/20130402/1364838429 https://sumita-m.hatenadiary.com/entry/20170718/1500346818 https://sumita-m.hatenadiary.com/entry/2019/03/14/231246 https://sumita-m.hatenadiary.com/entry/2019/05/02/091419 https://sumita-m.hatenadiary.com/entry/2019/07/18/101410 https://sumita-m.hatenadiary.com/entry/2019/07/26/073817 https://sumita-m.hatenadiary.com/entry/2019/07/30/020756 https://sumita-m.hatenadiary.com/entry/2021/03/09/111931 https://sumita-m.hatenadiary.com/entry/2021/04/04/040014 https://sumita-m.hatenadiary.com/entry/2021/04/10/153422 https://sumita-m.hatenadiary.com/entry/2021/08/03/145439
