1889 VOLVELLE, WM. K. DAVID OF PHILADELPHIA PA, DOUBLE DISK PERPETUAL CALENDAR

(PLEASE CLICK HERE TO SEE OUR OTHER ITEMS CURRENTLY LISTED ON EBAY.) 

ANTIQUE WILLIAM K. DAVID'S DOUBLE DISK PERPETUAL CALENDAR.  Copyright 1889.  "Accurately adjustable to any month in any year from the commencement of the Julian Calendar, 46 B. C. to A.D. 1800, and from the commencement of the Gregorian Calendar, Oct.15, A. D. 1582, to A. D. 2400.  Printed card stock disks on heavy card stock paper which is about 4-1/4" x 6-3/4".  Condition: light soiling, toning, dings, scuffs and edge wear.  Please see photos for additional condition review.  Questions welcome!