A collection of seven 19th and early 20th century invalid or infant feeders also known as pap boats used for those who were unable to sit up or use a regular cup, most with lips to prevent spillage, thus for the sick or injured. All but one bear makers marks, here are the details:
 
The white feeder with the floriate markings, spout and side handle has a backstamp for C. T. Altwasser Silesia which refers to the Carl Tielsch & Co. porcelain manufactory, a German porcelain company founded in 1845 by Carl Tielsch in Altwasser (now Stary Zdrój, Poland). The company's porcelain, known for its high quality and artistic value. 
 
The feeder with the green handles lines and gilt decor has a registered trademark lozenge allowing us to date this piece to the 3rd of April 1875.
The cream feeder with the long spout has a backstamp for Kirkhams Limited Stoke on Trent, in business from 1858.
 
The white feeder without a handle is by Maw, a prominent 19th century surgical equipment supplier and is also marked "Parex" and with a design registration number giving us a date of 1917 so likely a veteran of WW1.
 
The smallest feeder has a backstamp for A. H. & Co. France who were Alfred Hache & Company. Alfred Hache & Company was a prominent French porcelain manufacturer, operating primarily in Vierzon from 1845 to 1934. The company was founded by Adolphe Hache and Leon Pepin-Lehalleur, and later evolved through various family partnerships. They were known for their fine, often hand-painted, porcelain, and their work was recognized with multiple awards, including medals at international exhibitions. 
 
The feeder with the blue rim has a backstamp for Minton and is early 20th century.