 Klug's own work involved making deliveries by bicycle.In order to avoid drawing the interest of the authorities, the left-wing IOL, of which he had been a member earlier in the decade, had by now dissolved itself into a number of small and for most purposes isolated cells, but his delivery work nevertheless enabled Klug to keep in touch with political friends and teachers whom he had known in the IOL, as well as parents whom he had known when he was a teacher at the school in Telemann Street.And although his deliveries were officially only of coffee, he also took the opportunities presented to distribute illegal written materials.