Your picture is of an "official" IBM model 3336 disk pack, this one being manufactured and sold by IBM. This style pack was used on the IBM 3330 disk drive and many, many other non-IBM drives. When used on the IBM 3330 disk drive, it stored either 100MB or 200MB per pack, depending upon the 3330 drive model.
Here is the official IBM product page:
https://www-03.ibm.com/ibm/history/exhibits/storage/storage_3330.html
The Wikipedia entry:
https://en.wikipedia.org/wiki/History_of_IBM_magnetic_disk_drives#IBM_3330
What is so interesting about this pack was the dominance that it obtained, outside of IBM systems, in the late 1970s and all throughout the 1980s. Some examples of disk drives utilizing this style pack were the CDC models BJ4M1, BJ4M2, BJ402, BR3D4, BR3C2, BR6xx and BR7xx (975x, 9764, 9766) which were OEM'd for dozens of other computer manufacturers such as Digital Equipment Corporation and Honeywell. Another example is the Memorex RP05 and RP06 which was widely used by DEC. Some companies designed and made their own, non-OEM'd, disk drives of this type, such as Fujitsu for their FACOM line.
Some of these non-IBM drives were highly proprietary and some were SMD drives. The maximum capacity of a non-IBM drive using this style pack was 300MB, such as the CDC 9766 drive.
These style packs were also branded and sold by CDC, Memorex, DEC, BASF, Dysan, and several others. I suspect that there were only a few actual manufacturers, and most of these packs on the market were rebranded (OEM'd).
Bitsavers.org has an extensive collection of CDC disk drive technical manuals. It is fascinating reading.
These packs were not always interchangeable, as I have found out. The disk drives' spindle pack-locking mechanisms and pack center locking pin designs differed very slightly, preventing disk packs of different capacities from being accidentally mounted on the wrong drive. I also suspect that the differing locking details were to limit a customer to a particular disk pack brand or brands. For example, for the DEC RP06 disk drive, it would only accept the DEC-branded RP06P 200MB pack (or a limited number of equivalents). The drive could have been designed to use any generic 200MB 3330-type pack.
I hope this fully explains your question.