Printed on GUMMED side. 1974 10c Star Sapphire from the Marine life and Gemstone set. Unmounted mint block of 4 stamps. Brusden White (Australian Commonwealth Specialists Catalogue, Decimals 1), which is significantly more useful than SG for Australian stamps reads. “It is believed that at least 2 sheets printed on the gummed side have been broken up”. Each sheet comprises 200 stamps. 578,904,000 stamps were issued. ACSC 648ci in my 2002 edition! No thins, tears, toning or perf splits. No apologies for the pun – couldn’t resist it… Rare in a block like this – a real Gem! The gallery images are either photographs or scans of the actual item you? No image has been? Or edited in any way. Quality and settings of screens vary widely which can affect image clarity and colour. I describe item/s exactly as they appear to me in person and only sell items that I? D be thrilled to receive. Please wait until your auctions end and I? Ll raise a final invoice. From the Post Office. If other services are required pleas. E let me know. Please post in the same way as sent i. Recorded with signature required? Upon return, I will evaluate the item to ensure it is the actual item, also, that it is in the same condition as when sent. If you have any questions, let me know.