SOmething I found on the net, I hope it helps...
Dating a Hasselblad
You can date the manufacture of your Hasselblad bodies and backs using the following serial number code. The first two or three digits indicate the item number, then the next two letters the manufacture date. Older cameras/backs may start directly with the date letters. Using the chart, I find that my 203FE body (serial #18SV113xx) was made in 2001; and the prism finder PM-90 (serial #411ET1xxx) was made in 1996.
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You can also date the lens manufacture. Zeiss doesn't use Hasselblad's VHPICTURES, but if you take the lens off the camera and look at the rear element, there should be a 3-digit or 4-digit number in red lettering on the inner shroud. You may have to focus the lens to infinity or to the closest focus distance in order to reveal it. This is the manufacturing date code. In order to decode it:
The last two digits are the month
The first one or two digits are the year. Add this to 1957.
So my 50mm C Distagon has a date code of '806'. This means it was made in June of 1965. My 80mm C T* has a date code of '1605'. This means it was made in May of 1973. This only works with older C and CT* lenses apparently.
CF lenses use a different code: one letter and two digits. The letter is the month (A=Jan; B = Feb; C=March; D= April) and the two digits are the year flipped. So 28 = 82 = 1982. So F58 = June 1985.
My 80mm CFE lens does not have a visible date code, so if I wanted to know when it was made, I would have to look up the serial number (there are charts in some books).