The Book of the IVATT 4MTs LM CLASS 4 2-6-0s 43000 - 43161The Book of the IVATT 4MTs LM CLASS 4 2 6 0s 43000 43161 RRP is 27. 95 NOW JUST 19. 95 When a class of engine is christened by enthusiasts Doodlebugs or Flying Pigs, amongst a number of other less than admiring nicknames, there is an implication that the LMS Ivatt Class 4 2 6 0s were not the most admired of locomotives. Little has been written about them compared with their more glamorous brethren and it seems that in their early days there was some