Auction: 18039 - Fine Stamps and Covers of South East Asia, Including The Dr. Cheah Jin Seng Collections of Straits Settlements and Kedah, and The Iain Dyce collection of Straits Settlements
Federated Malay States
Essay proofs in the form of imperforate colour trials
1c. in grey-green and green affixed to piece (88x55mm.) headed "Appendix A" and with "1 Cent" written alongside, and 1c. (3) with vignette in grey-green and frames in orange-brown, violet and brown, affixed to piece (125x46mm.) headed "D.F. Key. - S.F. Overprints", fine.
De La Rue archives, November 1976