Add to ORKGBlack and white photograph (undated) showing the proper way to hold chalk for blackboard writing
Black and white photograph (undated) of math problems handwritten on a blackboard
Black and white photograph of a man pointing to a blackboardhttps://digitalcommons.cedarville.edu/mi...
Black and white photograph (undated) of C.P. Zaner and a student writing together on a blackboard
Black and white photograph (undated) of a blackboard handwriting specimen by C.P. Zaner
Black and white photograph (undated) of young boys practicing their handwriting at the blackboard
Black and white photograph (undated) of a blackboard handwriting specimen by C.P. Zaner
Black and white photograph (undated) of an advertisement for the manual "Blackboard Writing," writte...
Black and white photograph (undated) of a blackboard handwriting specimen by C.P. Zaner
Black and white photograph (undated) of a blackboard handwriting specimen by C.P. Zaner
Black and white photograph (undated) of a blackboard handwriting specimen by C.P. Zaner
Black and white photograph (undated) of a group of young girls practicing their handwriting at the b...
Photograph of penmanship instructor Ms. Arnold and her class practicing their handwriting at the boa...
Black and white photograph of a man writing on a blackboardhttps://digitalcommons.cedarville.edu/mis...
Photograph of a child holding up a drawing of a person. The child stands in front of a blackboard
Black and white photograph (undated) of a classroom of children practicing their handwriting at thei...
Black and white photograph (undated) of math problems handwritten on a blackboard
Black and white photograph of a man pointing to a blackboardhttps://digitalcommons.cedarville.edu/mi...
Black and white photograph (undated) of C.P. Zaner and a student writing together on a blackboard
Black and white photograph (undated) of a blackboard handwriting specimen by C.P. Zaner
Black and white photograph (undated) of young boys practicing their handwriting at the blackboard
Black and white photograph (undated) of a blackboard handwriting specimen by C.P. Zaner
Black and white photograph (undated) of an advertisement for the manual "Blackboard Writing," writte...
Black and white photograph (undated) of a blackboard handwriting specimen by C.P. Zaner
Black and white photograph (undated) of a blackboard handwriting specimen by C.P. Zaner
Black and white photograph (undated) of a blackboard handwriting specimen by C.P. Zaner
Black and white photograph (undated) of a group of young girls practicing their handwriting at the b...
Photograph of penmanship instructor Ms. Arnold and her class practicing their handwriting at the boa...
Black and white photograph of a man writing on a blackboardhttps://digitalcommons.cedarville.edu/mis...
Photograph of a child holding up a drawing of a person. The child stands in front of a blackboard
Black and white photograph (undated) of a classroom of children practicing their handwriting at thei...
Black and white photograph (undated) of math problems handwritten on a blackboard
Black and white photograph of a man pointing to a blackboardhttps://digitalcommons.cedarville.edu/mi...
Black and white photograph (undated) of C.P. Zaner and a student writing together on a blackboard