Phosco P178 street lantern for mercury lamps

After many years of searching I have finally found myself a P178 and crossed off a much-wanted lantern synonymous with my childhood growing up in Cambridge. My many thanks go to fellow local collector Jaye (I believe "Lampyman" here on LG). This, I believe, is quite an early design in which the lamp burns vertically instead of horizontally, and has no photocell socket (and has miraculously not been drilled for a photocell). I am very happy indeed to have finally obtained one of these!