Have been using this particular stamp catalogue which I find extremely useful for searching up on old stamps issued in Singapore. It is titled "Singapore Postage Stamps Catalogue". The one that I have is the 2nd edition. Bought it at a retail price of S$20. It was written by I think one of the owners of CS Philatelic Agency which has an outlet in Peninsula Shopping Centre. I have bought some of my stamp supplies from there and I must say that the shop is pretty well-stocked. There are not many stamp shops around Singapore and one is hard pressed to find shops that specialises in postage stamps nowadays.
