Vintage Microsoft's Certificate of Authencity (COA) - a collector's item. In the 1990s it was crucial to possess COA as legal license to use MS software, unlike today's where legal software only requires an electronic key where no physical certificates are actually issued. These 10 COA have been very well preserved and still in their original wrapping. If you are into vintage computing, these COA are worth collecting as they represent a part of computing history in the early years. Take the whole lot of 10 COA for only $10 total, not selling individually (so worked out to be just $1/piece). +++Non-negotiable. **All items are sold as seen conditions, no warranty/guarantee. For self-collection only at meet up location CSC (Katong).
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