With the 1960 base, trailer numbering started in the TU- series, possibly at TUA-100.
After TZZ-999 was reached, the series resrt and started at TAA-100.
All of the plates up to TZZ and then from TAA as high as TKC-384 used experimental reflective sheeting.
They usually used blank metal tabs with the sticker(s) attached.
There are listed in alpha order on this page.
1980 TABc.1967 plate
This plate is an anomaly - it's a TG- series (which should have been issued around 1967), but it has a natural 1960 tab.
The source of this plate said that the tab was original to the plate.
Either way, I wanted to include it here. Dave Zullo
In mid-1970, the reflectorization was changed somewhere between TKC and TKH. The tab slots went away at this point as well ... sort of :-)
It looks like these reflective plates from TK? to TNZ had clearcoat applied on top of the same reflective sheeting that was used previously.
Thanks to Dave Zullo for the info on the reflectorization of these plates.
REFLECTORIZED and the sheeting is
over a blank with TAB SLOTS !!
REFLECTORIZED - STICKERED 1976
REFLECTORIZED - STICKERED 1975
REFLECTORIZED - STICKERED 1984
Starting with the TOA series, reflectorization was dropped, and regular painted plates were used.
The TRA-TRZ and TSA-TSZ prefixes were skipped, because the TR-A and TS-A prefixes were used on TRACTOR plates.
A possible overlap of serial numbers happened in 1972 or 1973.
The TUC series of trailer plates was issued on the reflectorized base in 1960.
But there were also TUC plates issued on the 1971 (painted) base.
See below - number TUC-502 is from 1960 and TUC-809 is from 1972/73.
Seems like an overlap.