Antique Flow Blue Plate c.1840 , made by Mellor & Venables & co, it is a beautiful Staffordshire flow blue plate,  it is made in Burslem Stoke on Trent Staffordshire , it is a Victorian period original English plate, it has the makers mark impressed on the underside , Mellor and Venables & co. Royal Patent, the mark has the royal crest. the company was open between 1834 to 1851.  
it is in good condition, no damage
it measure 9 1/4 inches or 23.5 cm across. 

I will pack it carefully for the journey to you

thanks for looking