There are two documents. The first document, dated 31st December 1925, was an acknowledgment for a cheque received, from the Mecantile Bank of India, Limited. It was addressed to the Medical Office in Singapore for the amount of $334.62. The second document, placed behind the first document, is an invoice from Aktien-Gesellschaft Hormona, dated 15th October 1925. It was issued to the Medical Office for goods worth 37 pounds and 10 shillings.