Centennial Revolving Almanac from 1800-1900. Wood/paper calendar.
"Explanation: Find the Dominical Letter for any year from 1800 to 1900 in the left hand column of the Table. Turn part till the Dominical appears at the top and under it in the semicircle will be found a cut ender for the several months of that year. Leap year has two Dominical Letters. The one found in the Table is to be used for Jan. & Feb.and the letter preceding it for the remainder of the year. The Dominical Letters for 1700 to 1800 are given in the right hand column of the table."
