What Apple product uses this mechanical key?

[goJYDgo]

I am doing a clean out of a shop that is being closed down & I found a small handfull of these small keys with an Apple logo. I have asked around to no avail.
I figured I better go deep and find somebody that can give me good intel.
This is my first post so go easy on me if i am in the wrong forum or am just being a newb.
Keep it simple as I am not a tech guy I am an old school mechanical key type of guy.
I am seeing if there is a market for these before they get tossed into the bucket for recycling or selling to bored people that craft...

 

[JapanApple]

Apple PowerBook dual M7779

 

[goJYDgo]

Apple PowerBook dual M7779

Awesomness!
Is that a current product? Do you think there is any market for these cut keys? If I were to post for sale...eBay or ?
What function does the key perform?

 

[JapanApple]

Apple PowerBook dual M7779

Vintage Apple Macintosh Model M7779 PowerBook Duo Dock

It locks the device

maybe collector would like them

 

[genexx]

These where the good old Times when i started using Apple Computer to start with DTP...​

I never had the docking station but a LocalTalk Network with the 1 Serial Port.

​

PowerBook® Duo 230​

Introduced in October 1992

The word Duo in the name was not chosen at random, because Apple® combined two extremes. On the one hand, the Macintosh® Powerbook® Duo 230 was a slim, lightweight notebook and, on the other, a powerful workstation computer.

This was achieved by a docking station into which the notebook could be inserted. It was also possible to connect a mouse and a keyboard.

 

[goJYDgo]

These where the good old Times when i started using Apple Computer to start with DTP...​

I never had the docking station but a LocalTalk Network with the 1 Serial Port.

​

PowerBook® Duo 230​

Introduced in October 1992

The word Duo in the name was not chosen at random, because Apple® combined two extremes. On the one hand, the Macintosh® Powerbook® Duo 230 was a slim, lightweight notebook and, on the other, a powerful workstation computer.

This was achieved by a docking station into which the notebook could be inserted. It was also possible to connect a mouse and a keyboard.

View attachment 2418852 View attachment 2418850 View attachment 2418849

Thank you very much. I now know what I have and can see if somebody wants or has a need for them?
Very detailed down the the copyright mark!