T LATCHES Open car ??

[jerbo]

I have a pair of old [ pre-Model A ] open car type latches, see attached photos.
They are 4 5/16 inch wide, x 4 3/8 tall, with a lower left rounded corner. The handle extends 5 inches from the latch top, & is 1/2 x 3/16 thick, with threaded top about 3/4 inch. has 2 square holes: smaller: 1/4 square; larger 5/16 square, with 2 clinch nuts. They still work !!!
Does not look like any in Mac's catalog for T open car....Any help to ID them appreciated. Tks for looking ! Jerbo