Citizen model 123D s/n 0609316 Electronic calculator, 220-240V 50/60Hz 30W working Japan This one has so many buttons I do not know how to use all its functions, I have no instructions.
Citizen model 123D s/n 0609316 Electronic calculator, 220-240V 50/60Hz 30W working Japan This one has so many buttons I do not know how to use all its functions, I have no instructions.
