Calendar or the like with detachable overlays

Claim 1

A calendar or the like, comprising a. a rectangular planar backing member comprising a grid pattern of equally sized date areas, with each date area bearing a different monthly calendar date, all said dates having a first distinctive appearance and each row of said pattern representing a different day of the week, b. a plurality of first panels disposed in a shingled array on said grid pattern with each said first panels being of a width corresponding to two adjacent rows on said backing member and bearing calendar dates identical to those depicted on a subadjacent area each of said first panels overlapping a single row of an adjacent panel and having date areas corresponding in size and shape to a grid date area on said member, c. a pair of second panels disposed parallel to said first panels and of a width corresponding to one row on said backing member and bearing calendar dates identical to those depicted on a subadjacent area, each of said second panels having date areas corresponding in size and shape to a grid date area on said member, d. said first and second panels characterized by having lines of weakness along contiguous date areas for selective separation therealong, said first and second panels defining a layered configuration with each date area on the backing member including two superimposed panel date areas so as to provide first and second layers respectively, the calendar dates impressed on said first and second layers bearing a second and third distinctive appearance respectively, e. means detachable connecting each of said date areas on each of said panels to said member and to one another, whereby separation of a date area exposes a distinctive calendar date on a next subadjacent date area for ready recognition thereof.