2m Deutsches Reich - No Lozenges?

Hi
I know the quatrefoil stamps are scarce.
Just sorted a batch and came up with 2 stamps where I can't clearly
See the lozenges.
As proven, my eyesight is not what is was!
Can anyone help here?
Thank you

Have you dipped in Ronsonol?
Soaked in cold water for a few minutes?
Shined a light from the front, observe the back?

Your scans are not clear enough, we can hardly make out the hinge remnant.

Thanks for the reply
No, I haven't done that!

I'm not familiar with that process. Can you provide details and I'll attempt

I also encountered the same situation.
The answer received on the "stampsx.com" website and from the Michel catalog (inflation period - watermark):

1.Marke (scheinbar)ohne Wz sind weder minder-noch höherwertig =Stamp (apparently) without a watermark are neither inferior nor superior value.

2".The watermark Wz.1 is difficult to recognize on many stamps in 1921, one reason for the introduction of the new watermark grid Wz.2.
After several years of work, the wire mesh had worn out and was then consequently replaced.
Apparently the production of the watermark papers continued for a while with both grids, because MiNr. 219/223 were still printed with Wz.1 paper, possibly there were leftovers.
Incidentally, this can also be read in the Michel special foreword on the inflation period under the watermark. Incidentally, brands are also mentioned there that don't seem to have a watermark at all, so before this question arises, these too are only victims of wear and tear.
Incidentally, the Y watermark clearly says FISKAL-PAPIER, which is normally thicker and yellowish. Therefore, a Y search on standard stamp PAPER is a wasted effort".

Cupram
Thank you
Too be honest - I see something on stamp 1
Maybe it's the quatrefoil
But stamp 2 - I see nothing

Paul, it is referred to as "Watermarking"
The general option, is to purchase a tin of "Ronsonal" (Cigarette lighter fluid)
from a tobacconist, or suitable deli.

(I have trouble, as being a flammable liquid, it is now banned from
deli shops in Western Australia)

To use, drop a few drops of the lighter fluid, on a dark glass plate or similar,
and pop the stamp in face down.

The watermark should be immediately recognisable, if it is there.

Lift the stamp out, and it dries without harm in about 2 minutes.

Needless to say FLAMMABLE requires suitable care in its use.
Keep well away from flame

Here is a dealer, watermarking a possible $1,000,000 stamp
using that technique. (The stamp turned out to be $50)

Rod
Thanks
You mentioned water earlier.
Where does that become involved?

For MOST stamps, in the condition of your examples,
(USED, no gum a bit tatty)
Then there is likely no harm to soak in cold water for a few minutes
The Watermark becomes easily seen.

The little glass dark black ramiken I use, brings out the Wmk.

Do not use water on MINT with gum, or Netherlands Indies
and other generally purple stamps
The ink may bleed, and loss of gum damages the value.

Perhaps ask first

There are exceptions to the rule, SOME stamps from BRAZIL ROMANIA
etc, defy any identification, and can send the collector around the twist,
attempting the folly.

Rod
Much appreciated
I'll get onto it

PS: Before any of that, hold the stamp, by the tongs, up against some light,
(desk lamp)?

Australian "Roo's" and KGV stamps, should be very successful this way.

Rod
Thanks
Have done and appears there are no wmk on either.
Totally transparent.
Probably doing something wrong.

You have done your best, so, using CUPRAM's

1.Marke (scheinbar)ohne Wz sind weder minder-noch höherwertig =Stamp (apparently) without a watermark are neither inferior nor superior value.

2".The watermark Wz.1 is difficult to recognize on many stamps in 1921,

Thank you
Much appreciated