Show GUARANTEES ITS TIRES TO RUN MilES Pennsylvania Rubber Company Proves Confidence in Its Vacuum Cu Cup Product Announcement is made by hy the Pennsylvania Pennsylvania Pennsylvania Penn Penn- sylvania Rubber company compan of oC a substantial substantial substantial sub sub- increase in the guaranteed mileage of or Its vacuum cup tires Tills This raises the guarantee to miles and the tho new basis of oC mileage ad adjustment adjustment adjustment ad- ad not on only I applies to tires bought since the Increase became ef effective effective c- c ef- ef e but also to those now In actual service all over O the country This announcement according to Salt L I Lake e Hardware company local distributors distributors distributors of or the company compan logically follows the result of or the official test by bv the Automobile Club of ot America of strictly stock tires bought ht by bv club officials from Crom dealer stocks at widely scattered I points In this test te nine tires were run to a finish on heavy cars and rolled up III a certified average of oC miles mlle three cn casings exceeding miles The announcement further declares that on this new basis of ot guarantee these tires are from 17 per cent to 22 2 per cent lower in cost per mile than nn any tires now sold on an adjustment basis of mile miles Adjustments on the former basis were ere negligible sa says s the announcement announcement announcement announce announce- ment Having ing b by this conclusive test proved pro to the entire entire satisfaction both bothof bothof of oC prospective e tire lire users and ourselves I that our tires Ures were capable of or averaging averaging I In ing far in excess of oC the stipulated guarantee guarantee guar guar- I antee w we felt Celt more than justified In in I boosting the guaranteed service to I miles basin basing our action on the excEllent excellent excellent excel excel- lent showing made in this severe try- try out Since earning this certified era a average e however cr we have ha developed and applied ap ap- plied a pew toughening process to 1915 1315 V. V C C. tires which provides fully 50 per percent percent percent cent additional wear war resistance With this fact in mind coupled with the tho re remarkable remarkable reo- reo average a officially established it ma may readily be seen that our Increase in guaranteed mileage simply was a matter of course prompted b by our desire desire de de- de- de sire to give gl tire users et e every service advantage advantage ad ad- vantage e and absolute assurance that Vacuum Cup tires are lowest In ultimate ulti ulti- mate cost cost |