Not 100% sure? Please buy one first, I am willing to reserve the amount you need.
Unused vintage discontinued surplus, no box. 
Shows some crazing.
Shows variations in deliberate made blemishes like missing glazing and chips.
Dimensions vary a little and are roughly 4-1/16" X 1-15/16".
My advice for spacing is to use 1/8" spacers.
Projection is 1/2" from surface to bottom of curved lip.
5/16" to 3/8" thick.
Price is for 1.
Should be a good match for a farmhouse or a country cottage.
Numbered: no.
Brand: no
Made in S. America or Mexico.

5146-37