Trade card: Alfred Apps, optical, mathematical & philosophical instrument maker, 433 Strand, London W.C. n.d. [18--] seller of spectacles, eye preservers, telescopes, microscopes, astronomical, surveying & drawing instruments, self-registering barometers, thermometers, anemometers, magnetographs. 6.7x9.7cm conserved backed and edged to 10.7x13cm (Calv. 13) (C.C. 13)