Dated BBC Timing Cover & Valve Covers

[3macs1]

I was asked to look for a 69 427 425 Hp timing cover for an individual that visits the site and found one for the 8" balancer, dowel holes and has the angle cut tab so to me that is right. He then asks what the date code on it is.I remembered seeing numbers like 145 69 on the timing tab of another cover but not this one. Is that the date code?? If not where do I look. I asked him and he didnot know. He also wants a set of dated valve covers which I have honestly never seen dates on.Are the BBC covers dated also.Thanks for the help.