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09-22-2011, 04:16 PM   #1
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Rare asahi pentax 6X15

Hi - I'm new to the forum and have a post Jupiter Jr that is still 6X15. The story is that my father brought it back from WWII during his service in the South Pacific as a SeaBee. It has a leather case and is No. 230144. Is this rare?

Please let me know - Thanks - Bruce

09-23-2011, 01:30 PM   #2
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Welcome! I gargled for jupiter junior 6x15 and found that these post-WWII small binoculars aren't especially rare, but may sell for US$100-300 now. Do you ever use yours?
09-23-2011, 01:58 PM   #3
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Asahi Pentax 6X15

Yes I do. This isn't a Jupiter Jr but an Asahi Pentax 6X15. My research shows they started at 6X25 so I'm confused.

Last edited by Parallax; 09-23-2011 at 02:12 PM.
09-23-2011, 02:58 PM   #4
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Ah, I understand better now. From the little I've read, the Asahi Optical Jupiter Jr 6x15 and Jupiter Sr 6x25 are immediate post-WW2 binocs. Asahi didn't adopt the Pentax name until around 1957 IIRC, so any binocs labeled Asahi Pentax would date from then or later. I'm not really a binocs guy; maybe someone else can help.


Maybe that'll grab some eyeballs.

09-25-2011, 04:11 PM   #5
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I've just purchased the same one at an antique store. I got it for $30. My model no. 242303

I did some research an found this site:
Japan - Collecting Military Binoculars

Hopefully someone can tell us more about the binoculars
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02-27-2012, 02:45 PM   #6
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For a good reference site on miniature binoculars including both the AOCo/ Asahi and Pentax marked variations see

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