江戸湾 is read as えどわん (edowan) and means Edo Bay.
えどわん
edowan
えど
Edo (shogunate capital, now Tokyo)
えどっこ
(true) Tokyoite
えどまえ
Tokyo style
えどじだい
Edo period (1603-1868)
えどじだいぶんがく
Edo-period literature
えどがわだいがく
Edogawa University
えどせんけりゅう
Edo Senke school of tea ceremony
えどきりこ
type of faceted glass from Edo
えどこ
えどのぼり
Ryukyuan mission to Edo
えどま
Kanto-size tatami mat (approx. 176 cm by 88 cm)
えどことば
Edo dialect