Rhode Island Tercentenary Issue First Day Cover
300th Anniversary of the Settlement of Rhode Island
Issued on May 4, 1936 in Providence, RI - Scott #777

Unofficial Town Cancel - Shawomet, RI
Rhode Island Tercentenary Commission - Planty #777-18

The Shawomet Post Office, (Warwick Township, Kent County) was established on June 22, 1892 under Postmaster Thomas C. Hart. The Post Office was disestablished on June 30, 1949 and mail is handled by the Warwick Post Office.

Sources:
Check List of Rhode Island Post Offices 1790-1994 - Del Beaudreau
Rhode Island Postal History: The Post Offices - Merolla, Jackson & Crowther