What does "見てけらしょ" mean? This is the full sentence:
見てけらしょ、おやじさん。なんだかお伽話しみたいだべさ。
(It is from the book 鉄道員 written by 浅田次郎.)
This is the previous sentence for more context:
かつては無蓋貨車と機関車で犇めいていた貨物ヤードは、涯もない雪原だった。
I think most native speakers would understand it as a dialectal form for 見てください even if they have never heard it or don’t know what dialect it is. (I haven't and don't, but it sounds like a northern dialect to me.)
見てけろ is another possible form. You might find it easier to guess because it sounds closer to the imperative 見てくれ.