I waenga i te 1880 me te 1935 Nahl he kaiwhakaatu nui puta noa i California me ana peita hinu, whakairoiro, waro, taarua (ina koa nga monotypes, etchings, me nga lithographs), whakairoiro, me nga peita wai i tino manakohia. I roto i ana tohu maha ko te mētara parahi i Seattle's Alaska-Yukon-Pacific Exposition i te tau 1909 mo tana peita "The Silence". I te tau 1915 i te Whakaaturanga o Panama-Pacific International (PPIE)
I whakawhiwhia ki a Nahl's "13th Labor of Hercules" te panui lithographic hei taonga tuatahi ka tohua hei ahua mana, i whakaatuhia ki nga mahere, uhi pukapuka me nga raarangi o te Whakaaturanga, i panuihia puta noa i te ao. Ko te whakaahua he ahua o te tane tahanga uaua i waenga i nga waahanga e rua o te whenua e tohu ana i te Cut Culebra i te Canal Panama. I te Whakaaturanga ano hoki i whakawhiwhia ki a ia he mētara parahi mo tana <unk> rangahau hinengaro<unk> i roto i te hinu i tapaina ko "Te pouri" me te mētara hiriwa mo ana whakairo tekau ma toru. I te tau 1926 i whakawhiwhia ki a ia he taonga mai i te California Society of Etchers.