Ah, many of those builing façades that are now murals were in fact painted ads some 70 years ago. https://g1.globo.com/sp/sao-paulo/noticia/2018/09/15/anuncio-

Ah, many of those builing façades that are now murals were in fact painted ads some 70 years ago. https://g1.globo.com/sp/sao-paulo/noticia/2018/09/15/anuncio-historico-descoberto-apos-desabamento-de-predio-em-sp-e-pintado-e-divide-opinioes.ghtml https://g1.globo.com/sp/sao-paulo/noticia/2018/09/15/anuncio...