Here's a link to a post with the entire Lionel Supplements combined in a searchable file.
Lionel Supplements Combined and Searchable
However, it does take a while to search the above file, it's 300mb!. If you want to just search on product numbers, here's a small PDF file that is the index to the supplements and is very quick to search.
Supplement_Index_for_Lionel.pdf
Send me an email to my profile address for some additional information.