▁exact ▁registration ▁or ▁with ▁minimum ▁overlap . ▁For ▁example , ▁the ▁first ▁printed ▁layer ▁might ▁be ▁black ▁d ots ▁followed ▁by ▁a ▁layer ▁of ▁colored ▁d ots ▁for ▁the ▁image ▁or ▁graph ic . ▁ ▁History ▁▁ ▁There ▁is ▁evidence ▁that ▁one - way ▁window ▁bl inds ▁were ▁used ▁in ▁ 1 8 th ▁century ▁London . ▁The ▁bl inds ▁were ▁made ▁from ▁canvas , ▁sil k ▁or ▁wire ▁mesh ▁which ▁was ▁painted ▁on ▁one ▁side . ▁The ▁product ▁was ▁advert ised ▁by ▁a ▁tr ades man ▁called ▁John ▁Brown ▁in ▁ 1 7 2 6 . ▁P aint ed ▁window ▁screens ▁were ▁also ▁found ▁in ▁the ▁US ▁city ▁of ▁Baltimore ▁from ▁ 1 9 1 3 . ▁The ▁screens ▁were ▁made ▁from ▁a ▁w oven ▁wire ▁mesh . ▁They ▁provided ▁decor ation ▁to ▁house ▁front s , ▁priv acy ▁to ▁those ▁inside ▁while ▁maintain ing ▁the ▁view ▁out . ▁ ▁Per for ated ▁films ▁were ▁sold ▁in ▁the ▁ 1 9 7 0 s ▁and ▁ 1 9 8 0 s ▁as ▁sun ▁bl inds ▁for ▁vehicles ▁and ▁buildings . ▁This ▁was ▁c ited ▁in ▁the ▁first ▁pat ent ▁application ▁for ▁see - through ▁graphics . ▁The ▁bl inds ▁had ▁bright ly ▁colored ▁and ▁reflect ive ▁front ▁sides . ▁The ▁reverse ▁side ▁was ▁a ▁non - reflect ive ▁black ▁color ▁which ▁allowed ▁good ▁visibility ▁through ▁the ▁blind . ▁ ▁See - through ▁graphics ▁were ▁used ▁in ▁ 1 9 8 2 ▁on ▁the ▁Sa fe ▁Screen ▁S qu ash ▁Court , ▁the