Guys, the link for info on TX titles and registration is at this link:
TxDMV - Motorists
On the right side of the screen, there is a bar to click for titles and another for registration. They are huge PDF documents but they are searchable. Search for classic, street rod, antique, etc . . .
To answer Emmet's question, vehicles with antique plates are subject to the following limitations:
(a) The department shall issue specialty license plates for a passenger car, truck, motorcycle, or former military vehicle that;
(1) is at least 25 years old, if the vehicle is a passenger car, truck, or motorcycle;
(2) is a collector's item;
(3) is used exclusively for exhibitions, club activities, parades, and other functions of public interest and is not used for regular transportation; and
(4) does not carry advertising.