Sensitive "Restoration" of Antique Slide Holder

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ebenbildmicroscopy
Posts: 130
Joined: Sun Jul 23, 2017 8:57 pm

Sensitive "Restoration" of Antique Slide Holder

#1 Post by ebenbildmicroscopy » Fri Feb 05, 2021 10:46 am

This mechanical stage is from an old cast iron Bausch and Lomb metallurgical style microscope that I bought off Fleabay as a parts scope... as it turned out, there was more good in the scope than bad so, it turned into a "restoration" - in true hoarder style, now I'm buying Fleabay accessories for *this* parts scope... at any rate...

Shown in the first pic is the stationary side of the slide holder that was bare brass yet the edges and back (where it attaches to the mechanism) were painted with the matching paint from B&L. The bare brass looks odd to me and, as a compromise ended up "blueing" it (shown in the second pic). The blueing also touched up the worn edges of the vernier scales painting. It seems odd to me that leaving this in bare brass would've been done at the factory - any opinions or rationale about this?

In the second photo, the reddish blotches at the top of the blued brass are a lighting artifact of the tiny MP camera I used.
JeffO
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JeffO, aka "Ortho amore"
Leitz Ortholux I
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hans
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Re: Sensitive "Restoration" of Antique Slide Holder

#2 Post by hans » Sat Feb 06, 2021 2:10 am

Interesting, hadn't noticed before but the one I have been cleaning up also has a different finish on that part. No idea what the reason might be.
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BramHuntingNematodes
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Re: Sensitive "Restoration" of Antique Slide Holder

#3 Post by BramHuntingNematodes » Sat Feb 06, 2021 3:27 am

None of mine have bare brass. Maybe someone spilled something on it.
1942 Bausch and Lomb Series T Dynoptic, Custom Illumination

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ebenbildmicroscopy
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Re: Sensitive "Restoration" of Antique Slide Holder

#4 Post by ebenbildmicroscopy » Sat Feb 06, 2021 10:31 pm

Hans, that does appear to be a similar treatment! I'm glad you showed that... and BramHunting, I do think that someone attempted to polish that portion of the holder since they discovered it is brass.
JeffO, aka "Ortho amore"
Leitz Ortholux I
Leitz Orthoplan
Leitz Macro-Dia Device
Zeiss GFL
Zeiss Standard
Zeiss Photomicroscope III
Zeiss OPMI 6S
B&L Stereozoom and Balplan

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ebenbildmicroscopy
Posts: 130
Joined: Sun Jul 23, 2017 8:57 pm

Re: Sensitive "Restoration" of Antique Slide Holder

#5 Post by ebenbildmicroscopy » Sat Feb 06, 2021 10:33 pm

It is shown on the microscope here:
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JeffO, aka "Ortho amore"
Leitz Ortholux I
Leitz Orthoplan
Leitz Macro-Dia Device
Zeiss GFL
Zeiss Standard
Zeiss Photomicroscope III
Zeiss OPMI 6S
B&L Stereozoom and Balplan

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