Njeri Illustrated. Your City... Illustrated. For those who love Greenwich in South London, check out this art print of the Royal Observatory. Inspiration: The Royal Observatory is a great place to visit when you are in the Greenwich area. The view of the stars are lovely! Our individual blank greeting card is printed on 300 gsm high-quality FSC certified stock, comes with a white envelope and is packaged in a cello bag. Greeting cards are sold in packs of 6. The size of the greeting card is A6 (15.0 cm x 10.5 cm). My cards are inspired by London, designed and printed in the UK. Please get in touch for our full price list, T&Cs, and to request a sample! Note: All greeting card designs are available as art prints (size A4 and A3).