Show 4 k 1 x A PA aa ILI q increase your labor efficiency 50 mr mine owner superintendent and mine manager if we tell you that your men can work full shifts without loss of 0 time that you can increase your working speed that you can reduce the temperature V in your mine that you can reduce the humidity in your mine by installing LEX DID L patented jan 2 1917 other patents pending let US prove it we are willing to assume all risk it if you will just accept our 60 day free trial offer there are no strings to this offer we will send you for testing purposes several hundred feet use it put it to every test at the end of 60 days it if it has not made money tor for you ship it back to us freight collect 3 that s a fair proposition isn t it be sure to send for our book better ventilation lower production costs which will explain how the system will increase your profits and the efficiency of your labor it will be sent absolutely free no obligation on your part BEMIS BRO BAG CO selling agencies in principal cities and mining camps of the world poplar lar st st louis USA established 1858 |