The lid is similar to another lid made by the same manufacturer and differs mainly in the way in which the circles that make up the background are arranged
Photographer’s Notes: К - «канализация», sewer ГОСТ 3634-99 - standard GOST 3634-99 БКМЗ — BKMZ, old name of the builder БКМЗлит (BKMZlit) С-В125-К-1-60 — model of the manhole, С — «средний», medium, B125 class