I have two older versions of the Model 52 Instruction Sheet; one with a parts list dated 1962 and the other dated 1973. As you would expect the older one shows the longer extractor and the later one shows the smaller extractor.
There are other newer versions. Here's one that covered several models including the 52.
http://stevespages.com/pdf/s&w_39_59...539_559_52.pdf
Since your gun is towards the end of production in 1993, it may have had an even newer version of the manual. I'd suggest you check online auctions for 52-2 and see if you can find a picture of a late production one with the manual shown.