Montessori collection, Czechoslovakia Enrico Valenti 9/25/25 Montessori collection, Czechoslovakia Enrico Valenti 9/25/25 Natural wood abacus Vintage from 1960 Read More Montessori collection, Russia Enrico Valenti 9/25/25 Montessori collection, Russia Enrico Valenti 9/25/25 Colored wooden abacus Vintage 1970, with colorful pieces, produced in USSR Read More
Montessori collection, Czechoslovakia Enrico Valenti 9/25/25 Montessori collection, Czechoslovakia Enrico Valenti 9/25/25 Natural wood abacus Vintage from 1960 Read More
Montessori collection, Russia Enrico Valenti 9/25/25 Montessori collection, Russia Enrico Valenti 9/25/25 Colored wooden abacus Vintage 1970, with colorful pieces, produced in USSR Read More
