КВС
ГОСТ 3634-2019
Л(А15)
K-1-60

Photographer’s Notes:
КВС — «Концессии водоснабжения – Саратов», «Water supply concessions - Saratov», the water company in Saratov, Russia, providing services in water supply and sanitation
ГОСТ 3634-2019 — standard GOST 3634-2019
Л(А15) — Л — «лёгкий», light, A15 class
K-1-60 — model of the manhole

Same cover but different color, taken by the same photographer on the same day at Ulitsa Chernyshevskogo, 153, Saratov, Saratovskaya oblast’, Russia, 410028 Click for a larger image

Vuori Susi note:
According to the GOST 3634-2019 standard, the letter K stands for канализация - sewage