Ray, attached is what I have regarding pictures of the lids.
My company purchased this group of 52ft6in mill gons in October of 2011 and they had lids and cradles. We removed the lids and cradles and are using the gons. The length and width of each set of lids should be comparable to that of a 52ft 6in mill gon. About the only detail that I have for the lids are the pictures attached. The lids are available for inspection if needed. I also do believe that if additional information is needed I can get the interested party in touch with the manager of the facility where the lids are located.
Thanks again for your interest and please take a look at the attached photos.
My client has 20 covers that fit 52ft mill gons for sale these cover are in Winona MN
dimensions of cars were as follows:
Outside extreme length 57 ft 1 in
Outside extreme width 10 ft 7 in
Inside Length 52 ft 6 in
Inside Width 9 ft 6 in