In case you thought this idea might be original to you (some of us have done similar at least conceptually if not graphically), @Wayne Sparkman found this in a rare tract now in the hands of the PCA Historical Center. Hopefully he can scan the full tract to make it available. From the 1842 publication "An Essay on Feast Days and Fast Days in the Christian Church" by Presbyterian minister Cortlandt Van Rensselaer.