Geographical game including means for checking correct plays

Claim 1

AN EDUCATIONAL DEVICE COMPRISING A BOARD HAVING A BLANK GEOGRAPHICAL MAP ON THE UPPER SURFACE THEREOF, SAID BOARD HAVING A PLURALITY OF PERFORATIONS AT THE POINTS OF LOCATION OF VARIOUS GEOGRAPHIC ENTITIES; A PLURALITY OF PEGS; EACH PEG COMPRISING A TOP AND A DEPENDING STEM INSERTABLE IN ANY ONE OF THE PERFORATIONS IN SAID BOARD; THE TOP OF EACH PEG INCLUDING INDICIA RELATING TO ONE OF SAID GEOGRAPHIC ENTITIES THEREON; SAID PEGS BEING DIVIDED INTO A PLURALITY OF SETS, WITH EACH SET HAVING A BASIC COLOR DIFFERENT FROM EVERY OTHER SET, EACH SET OF PEGS BEING FURTHER SUBDIVIDED INTO THE SAME NUMBER OF GROUPS OF PEGS WITH EACH GROUP OF PEGS HAVING A DIFFERENT DEGREE OF INTENSITY OF THE BASIC COLOR, THE DEGREES OF INTENSITY OF THE COLORS OF THE GROUPS OF PEGS BEING THE SAME AS BETWEEN SETS; EACH OF SAID PEGS FURTHER INCLUDING A RECESS IN THE TOP THEREOF WITH THE RECESS BEING ADAPTED TO RECEIVE THE STEM OF ANOTHER OF SAID PEGS WHEREBY ONE PEG MAY BE PLACED ON TOP OF ANOTHER PEG; MEANS ON SAID PEGS MUTUALLY COOPERABLE FOR RETAINING THE PEGS ON TOP OF EACH OTHER; AND MEANS ON SAID BOARD COOPERABLE WITH SAID RETAINING MEANS ON SAID PEGS FOR RETAINING SAID STEMS IN SAID PERFORATIONS WHEN SAID PEGS ARE IN A POSITION TO FALL THEREFROM; MEANS FOR CHECKING THE CORRECTNESS OF INSERTING SAID PEGS IN SAID PERFORATIONS BY GLANCING ON THE UNDERSIDE OF SAID BOARD COMPRISING A DIFFERENT SYMBOL ON THE END OF THE STEM OF EACH PEG AND CORRESPONDING SYMBOLS ON THE UNDERSIDE OF THE BOARD LOCATED NEAR THE PEROFRATIONS WITH THE IDENTIFY OF THE SYMBOLS ON THE STEM AND ON THE BOARD NEAR THE PERFORATION INDICATING THE CORRECT INSERTION OF THE PEG.