Lost limited edition 1980s 'The Amazing Spider-Man' comic book in downtown Helena.

I lost my prized 1980s comic book while walking in downtown Helena last week. It's a limited edition issue of 'The Amazing Spider-Man' and has some wear and tear but is still in pretty decent condition. I realized it was missing when I got home and haven't been able to find it anywhere. If you see it, please let me know!