Gary,
Your particular tom has been listed on eBay a couple times, I saw it in 2010 and again last month. It was incorrectly listed as an 8x12 in the auction I presume that you won (330798479040).
The model number is for an 8x12 single lug, separate tension tom, but I have seen one other 9x13 drum that had a label with the same model number (SN 16547). I am not aware that there was a 9x13 single lug, separate tension tom in a catalog. I have only recorded these two single lug, separate tension 9x13 toms and both possessed the 4425 model number.
Here are some of the model numbers that I have seen for 12 and 13 inch toms:
Tension:........Single.......Single......Separate......Separate......Separate.....Separate
Lug Style:......Single.......Single......Single..........Single..........Center.........Center
Finish:...........Lacquer.....Lacquer...Lacquer........Pearl...........Pearl...........Lacquer
Reso Heads:....None........Tacked....Tensioned....Tensioned.....Tensioned....Tensioned
Catalog:.........1955........1955........many..........many............1969...........1966
8x12..............4140............?.........4405...........4415.............4425............4435
9x13................?............4426.......4406...........4416...............?.................?
I suspect that, although not cataloged, the Playboy style tom in the 9x13 size would have been given the 4426 model for a pearl wrapped drum. It was not uncommon for Gretsch to use the same model number for different drums as the drums developed over time. When reused, they seemed to have a common head diameter, even as the number of heads, the tensioning or the depths changed. By the 1960s, it seems unlikely that there would have been plans to produce a 9x13 tom with a tacked on resonant head, so the number would have been available. With the exception of the early 4140 tom, 8x12 and 9x13 toms seemed to use the 44X5 and 44X6 series of numbers, respectively.
I do not know why your 9x13 would heve received a label with a model number for an 8x12 tom - mistake, failure to have a stamp that said "4426," limited production of 9x13 single lug, separate tension drums? There is much room for speculation, and I prefer not to speculate too much as to why it happened. It is an interesting question that your tom raises.
I will check against some price lists that i have to see if I can find mention of any other 9x13 single lug, separate tension toms.
I think that I have the portion of the tom mount that was attached to the tom. I do not have the portion that connected that to the bass. I acquired it on a damaged 8x12 center lug, separate tension tom that had lots of odd things going on (cracked shell, extra mount, wrap removed without removing lugs, so WMP wrap still under them). That particular drum was from the pre-label era. I will check my parts box to make sure I still have the mount.
Rick
PS: I would prefer you say that the serial number indicates an estimated date of 1963. I can not claim that my theory provides that level of precision, just that the theory is based upon review of a large number of drums and comparison to a number of other physical characteristics. It may just be semantics, but I do not want people attributing more precision to my guide than it warrants. This has happened with other drum dating guides and I want to avoid that to the extent possible.