The 1370 series closer was discontinued on Oct. 4th, 2008The 1260 closer hole pattern is 9-1/16" x 3/4", which is NOT the same hole pattern as the 1370 closer. The 1260-18QF plate does have the s...
The date is a 4 digit #. The first 2 numbers indicate the week it was made, and the last 2 numbers indicate what year it was made.
On most surface mounted closers, the model #, date code, ...