Combined ruler, calculator and clock
Combined ruler, clock and calculator
Combined ruler, clock and solar cell calculator
Combined typewriter and portable calculator
Electrical calculator having the functions of telephone book, ad
Electronic calculator
Electronic calculator
Electronic calculator
Electronic calculator
Electronic calculator
Electronic calculator
Electronic calculator
Electronic calculator having the functions of telephone book, ad
Electronic calculator having the functions of telephone book, ad
Electronic calculator having the functions of telephone book, ad
Electronic calculator having the functions of telephone book, ad
Electronic calculator having the functions of telephone book, ad
Electronic calculator having the functions of telephone book, ad
Electronic calculator having the functions of telephone book, ad
Electronic calculator having the functions of telephone book, ad