Harper-Cosgrave Block
Also known as: CBM-Charles Business Machines

Why it's listed
Built in the summer of 1896 on North Third Street in Zanesville, this four-story brick commercial block holds two storerooms divided by a common wall. Its symmetrical west facade places the storefronts on either side of a central stair to the upper floors. Paired one-over-one windows are framed by brick pilasters that rise into an arcaded corbel table below the cornice. A band of multi-colored tile runs between the third and fourth stories, interrupted by weathered stone Corinthian capitals. That tile makes it the only building in the central business district decorated with Zanesville art tile. William Brower Cosgrave, of the grocery wholesalers Harper & Cosgrave, owned it. The Bloomer Candy Co. was the first occupant, followed by Cosgrave's shoe factory and a hardware business. The Findeiss Leather Co., a tannery, held the south half from about 1914 through the 1950s. The building was recognized for its ornament and for its link to local candy-making and tanning.
Significance in brief: It is presented as an example of late 19th century commercial architecture and as the only building in the central business district decorated with Zanesville art tile. It is also tied to local commerce and industry through its candy-making and tanning tenants.
Machine-generated summary. This summary was generated by a language model from the official nomination document and has not been reviewed line by line by an editor. It may contain errors. Check the source document before relying on any detail. Source: nomination document (PDF) · National Archives catalog entry. NRHP reference 80003195, listed January 3, 1980. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence high).
Key facts
| Address | N. 3rd St., Zanesville |
|---|---|
| County | Muskingum County |
| Listed | January 3, 1980 |
| Reference number | 80003195 |
| Resource type | Building |
| Period of significance | 1896 |
| Architectural style | Late 19th century commercial architecture |
| Areas of significance | Industry, Commerce, Architecture |
| Level of significance | Local |
| Status (as stated in the nomination) | Listed as in excellent condition, altered, on its original site, and occupied. A 1975 rehabilitation altered the northern storefront, and work was in progress at the time of the form. |
| Acreage | 0.9 |
| Within district | Muskingum River Navigation Historic District |
| Coordinates | 39.94173, -82.00881 (NPS GIS) |
What listing means for this property
For an income-producing building, listing (individually or as a contributing building in a district) is the gateway to the 20% federal rehabilitation tax credit on qualified rehabilitation costs, often stackable with state credits. Work claiming the credit must follow the Secretary of the Interior's Standards and be approved in advance.
Listing does not restrict a private owner acting without federal money or permits; where federal funding or licensing is involved, Section 106 review applies.
General information, not legal or tax advice. Rules change; confirm with your State Historic Preservation Office or a qualified adviser.
Sources and further reading
- National Park Service, National Register of Historic Places database (snapshot May 2026), reference 80003195.
- Nomination form (PDF, National Archives) — catalog entry
- Wikidata Q125489890
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.