Medical Pottery? Have no idea of what this is looking for a back story and value on this set. Very old condition and the pitcher has been broken and glued? Makers marks are not clear most pieces have the same number (looks like German).[attachment]set.jpg[/attachment][attachment]Base 1.jpg[/attachment][attachment]base 2.jpg[/attachment][attachment]base 3.jpg[/attachment][attachment]base 4.jpg[/attachment][attachment]Lrgbowl marks.jpg[/attachment][attachment]Lrgbowl.jpg[/attachment][attachment]british potter.jpg[/attachment]
https://www.google.com/search?q=Diamond+shaped+mark+with+circle+at+top+and+backwards+R+on+pottery&client=firefox-b&tbm=isch&source=iu&ictx=1&fir=Ymx4y1EYg9vJZM%253A%252C1iU4RaV_eyUxOM%252C_&usg=AFrqEzdYu6M_AGO3EaOnxrY1PRkl5MArDA&sa=X&ved=2ahUKEwjJt76J-8XdAhUCRK0KHbGiBWIQ9QEwBHoECAYQDA#imgrc=Ymx4y1EYg9vJZM:
Shape looks like British Registration mark but I have never seen it made as part of the pottery !! It is normally stamped !! The R looks to be reversed on your mark !! This may be a copy cat version !! Will check more tomorrow !!
Where are the holes located ?? Which piece ??
Martha from the link that you provided I found what appears to be the additional mark on two of the pieces. It is from a handbook of marks on pottery and porcelain with a publish date of 1909. The mark is under modern British potters. I will add an image of it.
Thank you Martha. The piece with the holes is the small piece on the oval dish. There is also a large bowl that I overlooked. The marks are better so I will try to upload them