Note: A polite person contacted me that he was concerened that it might be a fake because on the certificate it had the word Destroyed spelled as Distroyed. He had me worried there for a few minutes. I have had this game for more than 25 years and never noticed the misspelling.So I googled it "scott adams limited gold edition" and checked images. There were several readable certificates and they all use distroyed. This was kind of an oldies goldies thing after adventrues went graphical. There is another interesting thing. On the certificate where it says TRS-80 Tape, you can see that the tape has faded and underneath it seems to say Atari Tape. There was an Atari Tape Version. The instructions included are for the TRS-80 tape system. There is an image of a certificate on the web that shows a certificate of 0201 for a TRS-80. This one has a number of 0234.
There is another image of a certicate for Atari Tape of 0449. This item is in the category "Computers/Tablets & Networking\Vintage Computing\Other Vintage Computing". The seller is "swimmingcatlady" and is located in this country: US. This item can be shipped worldwide.