CondillacBiblio.com
Mathematics puzzleBiblio.com
Magic Age Card."
17606004American or British After 1760. Very Good. 1 leaf 200 x 323mm; watermark of crowned lion with scepter and fascia of arrows very like Churchill #88 which he identifies as English colonial dated 1762. Seven columns of numbers with brief explanation on verso. Folds some beginning to split. <br /><br />Manuscript 18th-century game or puzzle which allows whoever knows the key to accurately guess anyone's age or chosen number in a "pick-a-number" scenario. We won't divulge the secret--but it has to do with binomial number systems--and it works! Similar magic age tables persist to the present day in a somewhat different form. unknown
Rodger Friedman Rare Book Studio · États-Unis400,00 $US≈ 338,44 €
