'Zymine' peptonising tubes : for preparing peptonised milk and other foods for the sick / Fairchild Bros. & Foster (Inc) New York.

Calendar blotter for April and may 1928 issued by Fairchild Brothers & Foster and their UK agents, Burroughs, Wellcome & Co. advertising 'Zymine' peptonising tubes, "the first peptonising powder." This would have been one of a series of blotters sent out to members of the medical profession every 2 months. The blotters have a small line illustration above the calendar grid of something relating to that time of year or something in a themed series. In this case a young woman in a sailor's cap is sitting in the front of a sailing boat with another boat in the distance behind her. Printed in red and dark green.