Regarding the trailers, preservation and actual availability of trailers for classic films has always been hit and miss since there never was a perceived need for them after the intitial run of these in the theaters. In one sense, we're lucky to have any of these at all since studios could have easily junked all of these after the film completed their first runs across America.
If memory serves, the trailers for the Sherlock Holmes films are sourced primarily from reissues of the films and are in much rougher shape than the Chans.
The ones included for WAX and CASTLE are likely all that Fox has in their library. From a cost/benefit standpoint the cost to restore a trailer would be too much for something the average purchaser is not going to watch more than a few times. Fortunately the films themselves look immaculate.
Yes, the wax Toler head looks eerily real. Maybe someday one of the few remaining movie oriented wax museums will see fit to recreate same.
