Here's my third set of Wire Nuts. This has some modern pieces of interest plus some glazed pieces and some no name unglazed pieces. The plastic ones are marked Ideal, Mars (sears Robuck & Co.) and Buchanon. The second piece in from the back is one of the first plastic wire nuts patented by Ideal Co.Some of the glazed pieces are marked S, M, W and P, DP. Hard to tell who they were manufactured by but all are neat to me. One unmarked piece is of the grey porcelain type. Two of the no name pieces just have a raised dot on the top.