Antique Desk made from Mahogany

This desk is in good condition, mostly been sitting in my grandmother's attic. The top folds up in two different sections with six total drawers. There is a seal at the back of one of these drawers that says, "Colonial Manufacturing Company Zeeland Michigan Artistry in Mahogany". It also includes four of the origenal wheels. I know that it used to belong to my great, great aunt but as for a time- line that is about it. Any information will be welcome. Thank you.

Fair