▁credit ▁until ▁the ▁early ▁ 1 9 6 0 s . ▁Begin ning ▁with ▁his ▁first ▁confirmed ▁Marvel ▁Comics ▁credit , ▁the ▁three - page ▁rec ap ▁" The ▁Origin ▁of ▁the ▁H ulk " ▁in ▁The ▁In cred ible ▁H ulk ▁# 3 ▁( Se pt . ▁ 1 9 6 2 ), ▁Rosen ▁became , ▁with ▁Art ie ▁S ime k ▁and , ▁later , ▁Rosen ' s ▁brother ▁Joe ▁Rosen , ▁one ▁of ▁Marvel ' s ▁primary ▁letter ers , ▁hand - draw ing ▁the ▁word ▁bal lo ons ▁and ▁sound ▁effects ▁for ▁virt ually ▁every ▁com ic ▁produced ▁by ▁the ▁company , ▁including ▁such ▁flags hip ▁titles ▁as ▁The ▁Ama zing ▁Spider - Man ▁and ▁Fant astic ▁Four . ▁ ▁In ▁addition ▁to ▁his ▁work ▁for ▁Marvel ▁during ▁the ▁de cade ▁of ▁the ▁ 1 9 6 0 s , ▁Rosen ▁worked ▁extens ively ▁during ▁that ▁period ▁as ▁a ▁letter er ▁for ▁Arch ie ▁Comics . ▁ ▁Rosen ' s ▁last ▁known ▁cred ited ▁com ics ▁work ▁to ▁appear ▁is ▁the ▁ 2 0 - page ▁story ▁" One ▁In to ▁Two ▁W on ' t ▁Go " ▁in ▁Captain ▁America ▁# 1 5 6 ▁( Dec . ▁ 1 9 7 2 ), ▁which ▁he ▁was ▁unable ▁to ▁complete . ▁According ▁to ▁Nick ▁Cap uto ▁( as ▁per ▁his ▁post ▁on ▁Marvel ▁Myst eries ▁and ▁Comics ▁Min ut iae , ▁Monday , ▁January ▁ 2 3 , ▁ 2 0 1 2 ), ▁he ▁reported ly ▁had ▁a