Here is what the skirts of a M-3285 look like separately... note the bell shaped middle ... the long inner skirt is the same as the skirt of the M-2640. Fortunately for many insulator collectors a lineman named Mat Price saved a good many insulators in the early 1990's from this line ( wile it was still in service) making these Lima's reasonably plentiful in the insulator hobby. Marked examples with the LIMA. N.Y. marking on the crown remain quite rare though.