F.18 Data Sheet 18

Blundell Rules Limited, Radiac No. 1, 1952-1956

Serial Number or Date Stamp:

Country: UK Primary construction material: pl Case included?: yes

Length of 1 decade = 2 in, and overall scale length = 2 in. The largest physical dimension is 5 in.

Front Scales: Dose/Rate Time StartExp

Back Scales:

Notes: radiation exposure calculator; log log scales; reversible land/sea discs; instructions on back

References: https://sliderules.nl/mysliderules/detail/blundell-brothers-radiac-no.1

Date Acquired: 07/12/2021