I have looked all places and found nothing about this brand and stone. I just wanted to know: 1. if it is a very collectible and sought-after hone, 2. what are the details about this company: date of formation, what products made, date of acquisition by another company or when it was shut down. 3. what type of hone is this and what would it be used for? Thanks
https://goo.gl/maps/HKr95F99gW1dCPYZ6. This is a link to Google Maps street view of 1727 Girard Avenue, North Minneapolis. As you can see, it's not an industrial building, but rather a two-family residential house. This might be a clue as to why you can find nothing on the internet about this company.