Found a Petromax 523 500 CP - is it original?

Hi everyone one, I found a lantern on a local market page today. Petromax 523 500 CP as the pictures say.
Need your opinions about how genuine it is, at least from what we see in the pictures. This will help determine the range that I will be paying for it (No shipping cost ).
Many thanks in advance.

 

I certainly can’t help with this query but just wondered why the label on the collar would be upside down?

 

With pictures unsharp or in mirror, it is hard to tell if all parts are original.
Seems that this the case but I can't see the markings obn the tank, top and /or other parts used. I even wonder if all pictures are from the same lantern since one sows a broken mantle and the others don't have a mantle.
I would ask as many sharp pictures as I can.

 

Compare:

Petromax 523 500CP Super Original
1960´s Petromax 523

 

Many thanks for all. These are close ups:

 

To note that I am unable to remove the tank cup which includes the pressure gauge. I don't want to turn it with force first not to cause any damage. Any ideas?


compare 8 letters

 

If the lamp has not been used for a long time, it is most likely that the rubber seal is stuck to both the tank and the filler cap / pressure gauge.
You should be able to remove it with a pair of pliers but use a piece of old leather or some thick cloth to protect it.

 

@Migwar, so what do you think after looking at the details?
Like Henry writes, use some gentle force. I assume you bought the lantern ?
The air release screw seems to be bend, make sure you don't bend it more. If it breaks you get a lof of extra fettling hours.

 

Well...it says that it is...

 

@WimVe many thanks, I think it is genuine. I have doubt about the pump knob only. As for the hint about the air release screw, it is much appreciated and hope it will work. I am dealing now with the first major issue "The check valve or nrv", no air is passing through. Letting it sit in some penetrating oil for the time being tried removing it, but it didn't fall out after unscrewing, so let it marinate hoping it will work.
Thanks @Henry Plews for the hint and @tretrop yes it is and happy to know that. Thanks for the others for their contribution and notes too.

 

The scratching on the tank bottom suggests that it could be from 1959 (or maybe from 1956). Therefore, the pump knob should also be original. The only thing certainly not orignal is the glass cylinder, which has been replaced at some time.

 

Jut to let you know the end of a short story.
I've found some multiple perforations on the top of the tank after changing the seals and pressurizing it.
That was unfortunate. The lantern will sit idle now as a store for spare parts.
It was impossible to spot the problem before applying the minimum maintenance.

thank you all for the contribution.
Migwar

 

A real shame - but it does happen sometimes. Are they pinholes or cracks ?

 

These are multiple pinholes that are scattered on the upper side. I will be sharing pictures later dear @Fireexit1 .

Thank you,
Migwar

 

That is a pitty.
Bring it back and ask money back. It is unusual and I wonder about the cause of it.

 

Its original except for the glass globe. How severe are the perforations? Just a few pinholes? Or is it a long stess crack?
It'd be a pity if its going to be a donor for spares. You'd be better off with new spare parts. Most common 500cp Petromax parts are not too difficult to source out.

 

Try coating the inside with POR15 and see if that seals it.

 

I have now corrected the mirrored pictures in the first post, and also uploaded them to the site.
Migwar, please don't use 3rd party image hosting in the future, but upload the files directly here, thank you.
The rest of the 3rd party hosted pics can remain.

@Migwar

 

Many thanks everyone for the fruitful information and advices.
The perforations are scattered, but it looks like there are 8 of them, which means there is a major issue beneath. Most probably a kind of rust from inside.
@Carlsson It is well noted for the use of 3rd party images and this is always considered, the pictures shared were received from the owner and were shared after no objection from his side. But well noted and respected.
Thank you,
Migwar

 

Repairing and sealing up pinholes are not exactly recommended or even advisable. Pitting corrosion has already set in. You'd never know how extensive that might be.
Despite that, I've done the extreme(or rather crazy) on a single brass fount with over a hundred pinholes. It must have been exposed to some highly corrosive chemicals over a long period of time to get that state.
With sheer determination and grit, I've somehow managed to seal them up with solder. It was done using 50/50 tin-lead solder with a high-power electric soldering gun and reactive flux.
Its been holding pressure so far.

 

As far as I am aware, the tank on these is the same as on an 826. It must be possible to get a good used tank from one of them.

 

Well, many thanks.

If anyone has a spare tank for such a lantern, please let me know.
Meanwhile, I will give soldering a shot. And will also be taking care for some black residue inside the tank. The residue is in a very solid state currently, I've tried acetone with no success, I am also having doubts the main tube leading from the tank is clogged by the same solid residue from the part situating inside the tank. These are the complications, other parts of the lantern look okay.

Regards,
Migwar

 

I have used Caustic Soda (Sodium Hydroxide) solution for stubborn deposits in brass tanks. The gas is bad for you and it can get pretty hot so gloves, glasses and being outdoors is really the only way to do it.

 

Many thanks @Fireexit1
What was the solution constitution please?

regards,
Migwar

 

Hmm. I have a heavy hand - I would start with what it says on the bottle/packet and work up from there..