This is an ink blotter undated but from the 40's-50's era. Ink blotters were used back in the days of fountain pens to blot up excess ink. They were a common form of advertising used by businesses to promote a product or service.
This blotter is from the O. K. Letter Shop in Harrisburg, PA and shows a spring floral bouquet.
The blotter is unused with some slight scuffing on edges and corners. The size is approx. 9" x 3- 3/4".