David Barrette of Douggin World Coins writes:

Kavan Ratnatunga of Sri Lanka writes:

In a December 13, 2019 email, Owen Linzmayer writes:

Aidan Work writes:

To visit the Bank Note Museum, see:
http://www.banknote.ws/

To visit the BanknoteNews.com, see:
https://banknotenews.com/

To read the earlier E-Sylum articles, see:
BANKNOTE CATALOG WEB SITE PROPOSED (https://www.coinbooks.org/v22/esylum_v22n41a13.html)
NOTES FROM E-SYLUM READERS: OCTOBER 20, 2019 : The Colnect Banknote Catalog(https://www.coinbooks.org/v22/esylum_v22n42a12.html)