Details and Image
|Date||Scale Length||Area of Use
|Disk||2100||LOGOMAT||Germany||Metal / Plastic||1970's||Dia. = 4.8 cm||General Calculations
Notes: "1) Logomat named this small slide rule ""The Pfiffikus"" 2) It is a very small, one sided and simple computing device and was popular 3) It used a dual cursor arrangement similar to Gilson slide rules"