LIGHTHOUSE illustrated pages (size 270 x 297 mm/13-hole system) are printed on non-ageing wood and acid-free card (170 g/m 2 ) in high-resolution black and white offset print. Colour printing is consciously avoided. This allows you to immediately spot the missing stamps in your collection.SF protective covers in sizes which match the stamps, made from clear, anti-glare polystyrene film, free from chemical softener are glued to the card of the albums. The protective covers hold the stamps in place and prevent sticking. They also protect your collection from dust and moisture.Many of LIGHTHOUSE illustrated album pages are also available without SF protective covers in a “regular” version.The individual characteristics of similar stamps which vary in e.g. colour, perforation or printing process are noted on the respective album sheets. This only applies to stamps with Michel (major) numbers and includes the year where required. At all times we aim for a harmonious and aestetically pleasing presentation.