Exhibit 4

JOINT FILING AGREEMENT

Pursuant to Rule 13d-1(k)(1) of Regulation 13D-G of the General Rules and Regulations under the Securities Exchange Act of 1934, the undersigned agree that the statement to which this Exhibit is attached is filed on behalf of each of the undersigned.

Date: June 6, 2022

ABIGAIL II LLC
By:	/s/ Britton T. Taplin
	Britton T. Taplin
	Manager
REPORTING PERSONS
By:	/s/ Britton T. Taplin
	Name: Britton T. Taplin on behalf of himself, and as:
	Attorney-in-Fact for Marital Trust created by the Agreement, dated January 21, 1966, as supplemented, amended and restated, between PNC Bank and Beatrice Taplin, as Trustees, and Thomas E. Taplin, for the benefit of Beatrice B. Taplin
	Attorney-in-Fact for Beatrice B. Taplin
	Attorney-in-Fact for Frank F. Taplin