▁museum . ▁He ▁worked ▁with ▁George ▁L . ▁St out , ▁the ▁founder ▁and ▁first ▁editor ▁of ▁Techn ical ▁Studies . ▁G ett ens ▁and ▁St out ▁co - author ed ▁P ain ting ▁Material s : ▁A ▁Short ▁Encyc lo pa edia ▁in ▁ 1 9 4 2 , ▁repr int ed ▁in ▁ 1 9 6 6 . ▁This ▁comp end ium ▁is ▁still ▁c ited ▁regularly . ▁Only ▁a ▁few ▁dates ▁and ▁descri ptions ▁in ▁G ett ens ' ▁and ▁St out ' s ▁book ▁are ▁now ▁out dated . ▁ ▁George ▁T . ▁Oliver , ▁of ▁Oliver ▁Brothers ▁Art ▁Rest oration ▁and ▁Art ▁Conserv ation - B oston ▁( Est . ▁ 1 8 5 0 ▁in ▁New ▁York ▁City ) ▁invent ed ▁the ▁vac u um ▁hot ▁table ▁for ▁rel ining ▁paint ings ▁in ▁ 1 9 2 0 s ; ▁he ▁file d ▁a ▁pat ent ▁for ▁the ▁table ▁in ▁ 1 9 3 7 . ▁Taylor ' s ▁prototype ▁table , ▁which ▁he ▁designed ▁and ▁constructed , ▁is ▁still ▁in ▁operation . ▁Oliver ▁Brothers ▁is ▁believed ▁to ▁be ▁the ▁first ▁and ▁the ▁oldest ▁continu ously ▁operating ▁art ▁rest oration ▁company ▁in ▁the ▁United ▁States . ▁ ▁The ▁focus ▁of ▁conservation ▁development ▁then ▁acceler ated ▁in ▁Britain ▁and ▁America , ▁and ▁it ▁was ▁in ▁Britain ▁that ▁the ▁first ▁International ▁Conserv ation ▁Organ is ations ▁developed . ▁The ▁International ▁Institute ▁for ▁Conserv ation ▁of ▁Historic ▁and ▁Art istic ▁Works ▁( II C ) ▁was ▁incorpor ated ▁under ▁British