▁of ▁the ▁ 1 9 9 0 s . ▁A ▁new ▁test ▁method ▁was ▁de vised , ▁using ▁present - time ▁O CR ▁technology . ▁The ▁tests ▁found ▁no ▁difference ▁in ▁O CR ▁performance ▁between ▁the ▁two ▁Euro ▁variants , ▁and ▁recommended ▁the ▁ad option ▁of ▁the ▁double - st rok ed ▁variant ▁as ▁it ▁matches ▁the ▁conventional ▁g lyph ▁shape . ▁The ▁project ▁did ▁not ▁have ▁funds ▁to ▁thor oug ly ▁test ▁the ▁g lyph ▁extensions ▁of ▁the ▁ 1 9 9 3 ▁proposal ; ▁initial ▁results ▁were ▁incon clus ive . ▁ ▁Av ail ability ▁ ▁Microsoft ▁Office ▁ships ▁a ▁version ▁of ▁Let ter press ▁O CR - B ▁produced ▁by ▁Mon ot ype . ▁It ▁covers ▁Windows - 1 2 5 2 . ▁Many ▁vend ors , ▁including ▁Ad obe , ▁still ▁sell ▁their ▁versions ▁of ▁O CR - A ▁and ▁O CR - B . ▁ ▁The ▁Te X ▁types et ting ▁system ▁has ▁a ▁public ▁domain ▁Constant ▁St roke width ▁O CR - B ▁font ▁in ▁M ET AF ON T ▁definition ▁form . ▁It ▁was ▁created ▁by ▁Nor bert ▁Sw art z ▁in ▁ 1 9 9 5 ▁and ▁updated ▁in ▁ 2 0 1 0 . ▁It ▁has ▁a ▁setting ▁for ▁square ▁stroke ▁ends . ▁The ▁definition ▁has ▁also ▁been ▁translated ▁to ▁M ET AT YPE 1 , ▁so ▁the ▁rounded ▁version ▁is ▁available ▁in ▁True Type ▁and ▁Open Type ▁too . ▁ ▁A ▁version ▁of ▁Constant ▁St roke width ▁O CR - B ▁by ▁Matthew