John Hermanson wrote:
>
> Production dates are on the back of the pressure plate for OM-1 through 2N.
> It's in code. First symbol is the factory it was made at. , First number
> is year: 5 for example, being 1975. Next number is month, 1-9, then X, Y,
> and Z standing for month 10, 11 and 12. There may be a 3rd number which is
> the number of the pressure plate, 1 through 5.
>
> Be sure you put the pressure plate back the way it came out. Oldest OM-1
> (short) pressure plates go in backwards compared to all other models.
> Locking notch goes toward latch. All others, locking notch on pp goes
> toward hinge. Push until it snaps.
> OM-4 and up has the production date in the film chamber, printed in white
> letters.
How does one interpret
TNM1 08
in the film chamber of a black OM4T ?
jh
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