National Semiconductor NASA 1980's 4" x 4" Ceramic Gold Wafer with CoA 1 OF 1

Description

It's time for the serious listings.  I have here a One of a Kind 1980's National Semiconductor 4" by 4" Hybrid White Ceramic  24K Gold Wafer that comes framed with a Certificate of Authenticity.  This Wafer comes from National Semiconductor's NASA Certified Facility in Santa Clara, Silicon Valley, California in the 1980's.
The ceramic square wafers came directly from
National
Semiconductors aerospace fabrication facility in Santa Clara, California. All of the ceramic square wafers were made for space missions - space probe, shuttle or satellite.
National
Semiconductor made a lot of parts for the space shuttle and I'm certain that at least two of them were for the shuttle. The person I purchased this from had received them from a friend who was an engineer at this facility, as a gift.
As a One of a Kind item, the chances of finding another one of these is extremely slim, let alone one that is Certified as Authentic.  This has been in my collecting since purchasing it at the end of December, 2016.  I have many wafers and chips in my collection, but this(and a few others that I purchased with this) is the only one that is certified in such as a way.
This is a must have for any serious Computer Chip, Silicon Wafer, or Technology Enthusiast.
Once it's gone, it's gone, so serious buyers make sure to inquire fast!
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Open to offers.
If you have any questions please do not hesitate to ask.
I will be listing many unique, rare, one-of-a-kind, vintage CPU, Computer Chips, Silicon Wafers, and other parts in the following weeks, so if there is any interest or inquiry into something I might have, please don't hesitate to ask!
Thank you for your time with viewing my listing, I appreciate it. I hope you have a great day!
NOTE:  Handling time is set to 10 days because I normally end up having buyers who want more than 1 item, so a few days can go by before the full transaction is completed; however, the handling time set for each item has to be obeyed or else penalties happen to me, so I set the handling time to a time that shouldn't cause problems.  I have been recently notified(10/24/22) that some buyers are concerned about the long handling times so I want to make everyone completely aware of the situation.
After THE FULL Transaction is complete(the buyer is done choosing listings to purchase, and ready for shipment), I normally try to ship the day of completion or the next day(depending if transaction completion happens early enough in the day and on a weekday), but 2-3 regular days(not business days) would be the maximum handling time.  I do not want buyers to have to wait for their product after purchase, I just want to make sure buyers have selected everything they want to purchase, before I ship, as most of my buyers thus far have wanted more than 1 item, while at the same time make sure I do not get penalized, because even if a buyer is okay with waiting, I have to obey the times set by the site.  Thank you for your understanding, and thank you for your time with viewing my listing, I really appreciate it.  If you have any questions at all about this issue, or anything else I can answer for you / help-you-with, please do not hesitate to ask.  I am here to make the Buyer's experience completely satisfactory, so let me know if there is anything I can do for you!  I hope you have a fantastic day!