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01-09-2013, 03:46 PM   #1
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How old IS this 6x7?

I recently bought a 6x7 body off of another member here on the forum. I have been trying to do some research on the age of this particular body, which isn't too bad, but clearly needs some of Eric's TLC. Now, I've only been able to find a few comments on serial numbers for the 6x7 body, but it seems this one might be pretty old.

I've read that the first 6x7s had 400000 as their starting point. I guess these would have been non-MLU bodies back in 1969? Anyway as you can see in the photo below, my camera has a serial of 4002603. Can I assume that this then is only the 2603rd 6x7 ever built? That this thing dates back to 1969 or 1970?? It's an MLU body too, so can I assume it's a very early edition of the MLU upgrade?

Web references seem spotty on the matter, anyone think as I do this may be one of the first 6x7s? If anyone one has linkage to a more complete history of 6x7 serials, I'd appreciate it.

Thanks for your opinions, just trying to figure out if I have a curiosity here or just a really old camera!

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01-09-2013, 04:17 PM   #2
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Found this link on the web.
67 & 67ii Serial Numbers List - Photo.net Medium Format Forum

In sum they say this.
67
400xxx = 1969
403xxx = 1971
415xxx = 1988
418xxx = 1990

-----

Never really thought about this with my original 6x7, now I'm going to have to look at it.
01-09-2013, 04:28 PM   #3
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Going by the serial numbers on my own cameras that is a really early one. I have three of the first series (with the checkered push-type film spool release rather than the little handles) and they have serials of 4004***, 4007*** and 4010***. None of mine work and parts to fix them weren't available so hopefully yours just needs a CLA rather than fixing.

FWIW, the original 6x7 can be roughly divided into three types: Original, with checkered push-type film spool release; second type, with the lift-and-turn film spool release; third type, with the lift-and-turn film spool release and mirror lock-up. There are small differences too, like the film type select on the body going from 10/21 to 120/220 (and the number of frames for 220 dropping to 20) and the battery holder which starts out being satin chrome and eventually becomes black enamel like the rest of the body, but there is no clear pointer to when they happened.
01-09-2013, 06:53 PM   #4
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Well my original 6x7 is s/n 4060425 so that would put it in the middle 1970's I guess. Film type select is 10/21 BTW.

01-09-2013, 07:25 PM   #5
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QuoteOriginally posted by blackcloudbrew Quote
Well my original 6x7 is s/n 4060425 so that would put it in the middle 1970's I guess. Film type select is 10/21 BTW.
Don't forget that early 69 to early 70 checkered non-MLU could have been modified by the factory to MLU equipped. High breakage of winding clutches would cause many early bodies to have a visit with factory or authorized repair centers. I think 406XXXX is about when the MLU out of the box versions where in full swing? My 406XXXX version has fully mint looking screws in the critical parts that seem to indicate it came from the factory with MLU. However, was in in 86 that the bodies badged as 67 where in production?

I have a 403XXXX with silver release and 10/21, but with factory installed MLU and handles for the spool release as well as the second version advance lever.

Last edited by MysteryOnion; 01-09-2013 at 07:35 PM.
01-10-2013, 09:18 AM   #6
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Nice lens you have on it. I use the WLF on both of mine. Here is both my 6x7 and 67 generations. I've had the 6x7 since new around 1990.





01-11-2013, 02:35 AM   #7
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My 6x7 is 406xxxx and it is non-MLU version :-((

You has 400xxxx but has MLU :-((

So...yours is older or mine is older ? :-D
01-11-2013, 10:29 AM   #8
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Germar--- I believe that your 400xxxx serial number is in fact one of the first made, just with MLU added later as a mod. I have a 409xxxx (Honeywell) non MLU. I noticed that loading film in it is much more difficult than my newer Asahi 415xxxx body. The film holding pins are longer, so I shortened them. It now loads as easily as my newer 6x7s.

01-12-2013, 01:38 PM   #9
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Should I restore it?

Thanks for the feedback, folks. I was able to examine (via photos) a slightly "newer" 6x7 on ebay with the serial 4006738, and it is clearly an unmodified version with no MLU and "checkered" spool releases. My body, numbered 4002603 has both MLU and the newer handled spool releases. But clearly, this body dates back to the dawn of Pentax 6x7s, kinda cool.

I've recently acquired a *much* newer 67 body that works perfectly, so I need to figure out what to do with this one. Would restoring this body have some merit due to it's history, or is it just another tired 6x7 ... in your opinion?

And thanks for your knowledge and information, it was very entertaining.
01-12-2013, 01:51 PM   #10
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QuoteOriginally posted by germar Quote
Would restoring this body have some merit due to it's history, or is it just another tired 6x7 ... in your opinion?
Ask Eric his opinion.
01-13-2013, 03:06 PM   #11
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Since there are no film backs, it's always nice to have two of these cameras because you can have a different film in each.
01-13-2013, 07:43 PM   #12
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All very interesting. But what age is my 67 with the serial number 4206716?
I have speculated 1992, which would be around the end of the last models produced, but not really sure.
01-16-2013, 07:16 PM   #13
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QuoteOriginally posted by Silent Street Quote
All very interesting. But what age is my 67 with the serial number 4206716?
I have speculated 1992, which would be around the end of the last models produced, but not really sure.
My 67 body is serialed 4216968, perhaps '92 or '93. Not sure since I'm not the original owner. The 67 was replaced with e 67II in 1998
02-14-2013, 08:00 PM   #14
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To close out this thread for future reference, the body shown here, 4002603, was sent to Eric for evaluation. He indicated that the body had no special value because of it's early serial number. Further, the body had been kept in such poor repair Eric suggested I junk it and find another body in better shape. It has since been sold for parts.

Regards and thanks for the replies on this thread.
02-15-2013, 07:52 AM   #15
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Thanks for the information. I have just bought a 67 55mm, initially to use on the 645N, but I probably cannot resist buying a 67 body too at one point (one with the waist level finder).
Are these waist level finders interchangeable between all bodies, actually?
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