Ceylon/Sri Lanka duplication/confusion [Risolto]

In adding my Ceylon notes, I have found confusion and duplication for Ceylon and Sri Lanka. The 1969-1977 issue of 2 rupees, 5 rupees and 10 rupees has identical designs for each denomination respectively, except for issue date and signatures. The time period covers the change of name in 1972 to Sri Lanka although the name is not mentioned on the notes. My copy of SCWPM is from 2014. Pick numbers 72 to 74 under Ceylon cover the entire range of dates through 1977. The Numista page for P# 74 (10 rupees) follows this pattern.

https://en.numista.com/catalogue/note209848.html

There is a Numista page for a P# 74A for Sri Lanka, which duplicates the 1971 to 1977 notes on the Ceylon page.

https://en.numista.com/catalogue/note214065.html

There are no Numista pages for P# 72 and P# 73 for Ceylon. There are pages under Sri Lanka indicating P# 72A from 1973 to 1977 for 2 rupees and P# 73A for 5 rupees, though I do not have such numbers in my SCWPM.

https://en.numista.com/catalogue/note207724.html
https://en.numista.com/catalogue/note207728.html

If the P# 72A to P# 74A are correct Pick numbers, the 10 rupees page for Sri Lanka should start with 1973, not 1971, and the 10 rupees page for Ceylon should end with 1971.

If the Numista entries for P# 72A and P# 73A are correct, P# 72 and P# 73 remain to be entered and should end with 1971 notes.

If P# 72A to P# 74A are fabricated, then current pages should be altered to Ceylon P# 72 to P# 74 and note that dates after 1971 were issued by Sri Lanka and to combine 1969-1977 on individual pages.

Sorry it is so hard to describe but it is messy.

Yes, it's very messy. The key is that the name in Sinhalese changes but not the name in English. I don't have a very up-to-date copy of SCWPM but the website Bank Note Museum covers the details well. The last notes for Ceylon are:
2R - P#72, 5R - P#73, 10R - P#74, 50R - P#77, 100R - P#80
The first notes for Sri Lanka are:
2R - P#72A, 5R - P#73A, 10R - P#74A, 50R - P#79A, 100R - P#80A
All of these have their own pages at
http://banknote.ws/COLLECTION/countries/ASI/SLK/SLK-CBC.htm
With this guide, I think we should be able to sort out these sections.

Thank you, ceh2019! You supplied the key information on the name change in Sinhalese. It might be time to get an updated SCWPM! I have only notes from Sri Lanka and am able to enter them, so I will leave it to others to clean up the entries and submit new ones for Ceylon.

Will

This is done.