Don't know if any members are interested at all in collecting Stock Certificates which have Revenue Stamps on them.
In this case, this is a Capital Stock of the American Dredging Company with a CDS cancels that reads "A. D. C., Phila." with 1898 Series Revenue Stamps R167, R175, and R184.
I was going to post a link to another section like I was advised to, but for some unknown reason at this time the instructions do not work for me, most likely because I made a mistake. So for now, I'll just post this one in the section "US Back of Book", maybe someday I'll figure out the complicated way of the link system!