Archived posting to the Leica Users Group, 1997/06/01

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Subject: Question about M3 glass pressure plate
From: Dave Munroe <dmunroe@hpvclmun.vcd.hp.com>
Date: Sun, 1 Jun 97 16:58:56 PDT
 
This isn't all that important, really, but I am curious.

According to several books I've seen, my M3 should have a glass
pressure plate.  It's serial no. 819xxx which makes it a type 2
M3 (ST, PV, old style shutter speeds), vintage 1956.  It is well
before the introduction of the metal plate.

I assume the plates were coated black rather than being transparent,
but it looks like black metal to me and it sounds like metal if I tap
it with my fingernail.

Should I scratch it with a key to tell for sure? :-)

- -Dave