▁H add or ff ▁and ▁Stra ube ▁pian os ▁at ▁the ▁H add or ff ▁plant ▁in ▁Rock ford ▁– ▁the ▁War ▁Production ▁Board ▁( WP B ) ▁ordered ▁that ▁manufact uring ▁of ▁pian os ▁at ▁the ▁Rock ford ▁plant ▁ce ase ▁by ▁July ▁ 3 1 , ▁ 1 9 4 2 . ▁Under ▁a ▁war ▁contract ▁between ▁C . G . ▁Con n , ▁Ltd ., ▁and ▁the ▁U . S . ▁War ▁Department , ▁the ▁Rock ford ▁plant ▁produced ▁parts ▁for ▁gl iders ▁and ▁tra iner ▁plan es ▁from ▁ 1 9 4 2 ▁to ▁ 1 9 4 6 . ▁▁ ▁C ess ation ▁of ▁production ▁of ▁Stra ube ▁pian os ▁The ▁last ▁published ▁reference ▁to ▁the ▁sale ▁of ▁a ▁Stra ube ▁piano ▁was ▁in ▁July ▁ 1 9 4 6 , ▁when ▁the ▁H add or ff ▁P iano ▁Co . ▁of ▁Rock ford , ▁Illinois , ▁exhib ited ▁a ▁complete ▁line ▁of ▁H add or ff ▁and ▁Stra ube ▁grands ▁and ▁spin ets ▁at ▁the ▁Pal mer ▁House ▁in ▁Chicago ▁during ▁the ▁Convention ▁of ▁the ▁National ▁Association ▁of ▁Music ▁Mer ch ants . ▁Production ▁of ▁Stra ube ▁pian os ▁ceased ▁in ▁ 1 9 4 9 . ▁▁ ▁D iss ol ution ▁of ▁the ▁Stra ube ▁corpor ate ▁entities ▁C . G . ▁Con n ▁retained ▁ownership ▁of ▁Stra ube ▁P ian os ▁Inc . ▁until ▁ 1 9 6 9 , ▁when ▁C . G . ▁Con n ▁was ▁acquired ▁by ▁the ▁Crow ell - Col