LINEX
letter scale & letter opener &
reading aid & caliper & calendar aid

Linex letter scale

This letter scale dates from 1972 and was made by Linex from Denmark. This scale has somewhat the appearance of a slide rule. The weighing range is 100 grams. The scale is subdivided per gram up to 20 grams. Above 20 grams a stripe of measure per five grams is given. According to the leaflet this Linex also is an aid to readability by the magnifying glass. Moreover, it is a caliper, and a letter opener, and it was a calendar aid during the years 1973, 1974, 1975 and 1976. You could quickly determine the day of the week for a certain day. For example, what is it on June 6, 1974? First read off

the calendar side of the scale

on the line 1974 under VI That it is a Sa (=Saturday) on June 1, set the slide with Sa above 1 and then read above the 6: Th. So, June 6, 1974 is a Th (= Thursday). It may once have been helpful. The drawings of the leaflet clarify the different functions a bit more. Use the letter scale by first clamping a letter, then take the red buttons between the thumb and index finger and shift the scale towards a horizontal equilibrium. Then read the value at the line of the transparent slide and put the correct postal stamp on your letter. In the past Linex produced other models of letter scales already. See the LINEX letter scale. The one shown here functions exactly like the letter scale & letter opener, and also like the letter opener & letter scale. Below some more pictures of this plastic letter scale with more or less the looks of a slide rule.

the box, the letter scale and the leaflet

the scale of the letter scale and below the scale of the caliper

the clip for clamping a letter

use as a letter scale	use as a letter opener	reading aid - magnifying glass
use as a caliper	use as a means to determine the days	Linex 1972, made in Denmark
push open to clamp a letter	clamped letter	in equilibrium
20 grams read at the line of the slide	part to determine what is the day at a certain date	part to determine what day it is at the first of the month in 1973, 1974, 1975 or 1976