I bought an early A7 long stroke airbox / battery carrier last year that I thought had been cut as the air filter insert did not fit properly. The picture in my 1948 parts book shows an insert with 4 connections as per the right one in the picture. I then found another one last weekend at an autojumble where the main airbox was the same shape as my first one but the insert fitted correctly (the left one in the picture). Both are the early airbox with the hole for the carb rubber directly behind the carb and not the later one where the rubber is an L shape. I was wondering if there was a different airbox / battery carrier for the rigid and plunger A7 in 1949 ? Thanks, John