F&F Laboratories Inc. of Chicago produced these trial size samples of their cough remedy in the early 1900s & used every bit of the cardboard box to advertise the effectiveness of their syrup & lozengesA large box is only 10 cents. The blue-green box measures 1.75 by 2.75 by 1.25 in size. The box, now empty, is sturdy but does show some signs of use/storage. Please look closely at photos & convo me with any questions. I pack carefully & ship same or next business day from Arkansas with free tracking. Satisfaction guaranteed or money cheerfully refunded. Vintage Advertising F&f Cough Remedies Box Sample Size 1.75 By 2.75 1.25