Print

2018.110.013Object

Photocopy

2018.110.288Archive

Dunbar & Sullivan Dredging Co.

Check, Bank

2018.110.181Archive

Duluth-Superior Dredging Company

Letter

2016.072.396Archive

Dunbar & Sullivan Dredging Co.

Booklet

2016.072.009Archive

Ellicott Machine Corporation,
Builders of Hydraulic Dredges, Dredging Pumps & Machinery

Print, Photographic

2016.072.246Photo

Print, Photographic

2016.072.243Photo

Typescript

2018.110.180Archive

Dunbar & Sullivan History Until 1934

Letter

2016.072.107Archive

Dunbar & Sullivan Dredging Co.
Sugar Island, Non Conforming Use Registration and Petition for Certificate, Township of Grosse Ile, Michigan

Check, Bank

2016.072.073Archive

Dunbar & Sullivan Dredging Co.

Indenture

2016.072.089Archive

Print, Photographic

2018.110.002Photo