Bank Negara Malaysia earlier issued an announcement on the release of the KDYMM YDPA XVI coins: https://myfdc.me/2019/08/15/19-august-2019-matching-coins-with-the-fdc-of-the-kdymm-yang-di-pertuan-agong-xvi-issue/?wref=tp
This matches very well with the Pos Malaysia stamp issue and numismatic and philatelic dealers are expected to try and make Philatelic Numismatic Covers (PNCs). Thus there was quite a high demand for the First Day Covers.
Just a reminder that today, Bank Negara Malaysia has opened the ordering link: https://duit.bnm.gov.my/
Online ordering will close on 23 August 2019.
The instructions are at: http://www.bnm.gov.my/index.php?ch=en_announcement&pg=en_announcement&ac=731&lang=en
After you order remember to go to your email and get the password.
Here is the maximum that you can order for each item. There is a limit set of 1 each except the Nordic Gold Coin Cards with a limit of 3. Note the SST payable.
Using the password, go back and PAY or your order will NOT be confirmed. You have been advised!
Want to match with a matching FDC set? Kuantan – Medan Tuanku – Kuala Lumpur FDC : Contact me.
Good luck!
sky52200
myfdc 
Hello.
I have some question in mind. How does philatelic numismatic cover (PNC) works? I don’t think it’s just paste the stamp on coin cards and get some cancellation on it – there’s a lot more way to do it. Just don’t know how to do it right.
Actually a circular puncher is used to make a hole to insert an encapsulated coin. This is normally secured with a cardboard card.
I am not a fan of PNC but I do know dealers are keen on these.
sky52200
Ahh, I see. Thanks for clarification.
Maybe you might consider write up the article about this PNC thing. Since not a lot of collectors know about such crosslinking between philatelic and numismatic paraphernalias. Not to mention it’s a rare kind, since BNM only issues fewer commemorative coins/banknotes annually.