Two Fantastic Aluminia Vases. They have decoration number 1122/988 and is from 1916. The measure 22 cm. in height. In the 1880s when production at the Royal Copenhagen factory was dropping to a dangerously low level they were taken over by Aluminia (founded 1863), successful makers of earthenware, and since that time the two ranges, earthenware and porcelain, have been running in tandem.