Number on my oil pump (is it a date?)

[bjmullan]

Hi guys

I'm in the middle of a VERY long engine rebuild (over a year to strip the engine) but today we finally split the case In the process I came across a number that had been scribed on my oil pump "13384" and was wondering if anyone here might know what it was? The car is ex Californian and is a 1969 T. Was thinking that it might have been the date of a rebuild back in 1984 but of course you American's do your date that other way around

Any comments (other than the length of time taken so far) welcome!