Blue Fluted Plain Rare square lidded bowl from 1820-1850

Royal Copenhagen Blue Fluted Plain, rare square lidded bowl. The factory mark tells, that this was produced around 1820 to 1850. Factory first. Measures 26.8 by 23.3 cm. There is a hairline crack inside the bowl. It is only seen on the inside and not on the outside - please see close-up picture. Otherwise perfect condition with no chips, cracks or repairs.