Royal Philatelic Society (Great Britain) · London : The Royal Philatelic Society · leaf 139
uction of all classes of commercial books, but which has not hitherto been associated with philatelic albums. Although new-comers, Messrs. Walker and Co. will be found to be serious competitors in the field, as their Loose-leaf Albums are remarkably simple in their construction, and are hence… … are, by the action of a lever, detachable in the centre, leaving the page open where it is required to be removed. The illustrations given herewith will more readily enable our readers to understand this novel and ingenious system. The action of the lever is at once instantaneous and absolutely…
