moddsey Mon, 11/02/2020 - 21:10 prevnextoldernewer The new automatic telephone system became effective on 4 May 1930. The use of magneto telephones was discontinued. With the change, new 5-digit telephone numbers were introduced. Date picture taken 3 May 1930 Tags Hong Kong Telephone Co Author(s) Moddsey Gallery 1930s Hong Kong Log in or register to post comments