The Startled Queen Coin
Jim Wells writes:

Queen Struck First Coin at Royal Mint in Llantrisant
Dennis Forgue writes:

For more information on the Llantrisant Mint facility, see:
Llantrisant: The Royal Mint's Home(https://www.royalmint.com/aboutus/50-years-in-llantrisant/)

Bad Science at Live Science
Pete Smith writes:

Dave Gladfelter writes:

To read the earlier E-Sylum article, see:
DOES BYZANTINE COIN SHOW A SUPERNOVA?(https://www.coinbooks.org/v25/esylum_v25n37a26.html)

Are you a Reader?
Gil Parsons writes:

To read the earlier E-Sylum article, see:
THE E-SYLUM'S 24TH ANNIVERSARY(https://www.coinbooks.org/v25/esylum_v25n36a02.html)

Catalog of Stamp Papers Used in British India
Anil Bohora writes:

Catalog of Stamp Papers Used in British India(https://dl.orangedox.com/yqkYBR8VdUZboQCeBK)

List of Stamp Papers Used in British India Sorted by Denomination(https://dl.orangedox.com/DRSvBAtaXoJqGtp13r)

List of Stamp Papers Used in British India Sorted by Type(https://dl.orangedox.com/0Tyg2wupVpMJWh0gBA)

Please note that:

1. For now, I have not included any information about the rarity or the price, as there is very little buying & selling information that is available in public domain

2. Some denominations which I have listed but not confirmed, may not even have been printed

3. I may have missed some denominations, which are yet to be cataloged