I have the main unit (CIB).
Type calculator
The Canon P1-D — Printing Calculator
The Canon P1-D was a portable printing calculator — combining electronic calculation with a built-in thermal printer that produced a paper record of calculations. Printing calculators were essential business tools throughout the 1970s and 1980s, providing the audit trail that accountants and financial professionals required to verify their work. Canon was one of the major manufacturers of this category, and the P1-D’s portable format brought printing calculator capability to users who needed documented calculations on the move.