Greetings From The Isle Of Bute Mechanical Clock Postcard

bg378 This is a rare 1950s postcard from The Isle Of Bute that I have described as a clock card as I dont know what else to call it as it is a completely specialist and unusual card from 60+ years ago - Inside the card is a rotating clock type spinning selection of further real photo views from the area and you spin the dial round to choose which to display - its unique - please note condition is generally good to very good but it has quite strong corner areas mainly top right (the rest is fraying) so my grading is just good plus (please allow) - the publishers have named it "A Mechanical Card" so be assured this is unique !!