Unused discontinued vintage surplus, no box. 

Self spacing. 

4-1/4" square.  

1/2" bottom lip projection (measured from back of tile). 

1/4" thick. 

Not 100% sure? please order one first, I am willing to reserve the amount you need. 

Price is for 1 tile. 

Great as a repair / replacement tile. 

Made in USA in the 1970s.

5357-4