What Is The Number On The Bottom Right Of The Sheet?

Hi,
Due to lack of space, I want to keep only 1 stamp from block 4.
In the Michel catalog there is no quotation (as for the older stamps) for the bottom row of the sheet with number.
It is not known how the quotation will evolve in the future, so I will keep the stamp with the bottom edge.
I did not find in Michel (as in the older stamps) what the number represents.
Thanks for sending me references.

This seems to be a Formnummer, not listed by Michel. It is used to identify the printing Form when an error is found in a sheet.

An explanation in German (Google Translate will help):
http://www.briefmarken-handbuch.de/...k=formnummer

Examples:
https://www.philaseiten.de/cgi-bin/...x.pl?ST=3176

See bottom of link about sheet margins:
http://www.sammler.com/bm/bogenraender.htm

As I understand it, when a printer's sheet is made up of more than one issued (post office) sheets, i.e., panes (Formen), the number identifies the pane (Form) in the printer's sheet.

One can look at it as a batch number. I anything goes wrong with batch number 5( Plate flaw, misprint etc etc) It is easier to take out/retrieve all "wrong" sheets because of the batch number 5.

Thank you NSK and Johan Buvelot
I understood (?) that it represents the number of the mold (on "philaseiten" I found it as "form nummer = platten nummer") and that due to the rarity index the market price is higher than the simple stamp.
I think I'll keep the blocks of 4 (the ones that have numbers)
The serial number of the sheet may be (?):

Cupram, please take the time to read the last link given by NSK. It is shown and explained there

Peter

As I understand it, they are not plate numbers, but more like pane numbers. When printed, a sheet is made up of multiple panes. They are cut up into counter sheets you find at a post office. Each pane in the printer's sheet becomes a counter sheet. The Formnummer identifies which pane in the printer's sheet that counter sheet was. So, if a counter sheet shows an error, the printer knows which pane in its printer's sheet is the source of the error.

Below image shows a British Machin counter sheet. At the bottom left is a matrix. It shows that each printer's sheet has 3 x 4 counter sheets. The sheet in the picture was the second pane in the first row of panes from the printer's sheet. As I understand the explanation, your number has a similar use.

The plate number (cylinder number) is the "D1" above the matrix. Actually, there are three of these numbers as there is the colour, iridescent security overprint and phosphor overprint. I think the number in the picture you post is neither a Plattennummer, nor a Formnummer, but something like the warrant number (0070097) at the bottom right of below picture. It identifies the order from the Post Office under which the printer printed the stamps. a sheet number.

But, please, let someone who knows something about German stamps provide clarity on the exact relation between "Form" and "Bogen." Above is just how I read the texts.

Peter4522- you were right, I had to read the last link that explains very clearly what the numbers on the edge of the sheets represent.
It is an ambiguity for me in equating technical terms from German to English (both languages are not native to me, but English is still easier).
For the "rosette" stamps from the German inflation period, a sheet of 100 stamps was obtained by reuniting 4 "druckform" of 5x5 stamps.(for flat printing)
I don't think I'm wrong in the translation:
bogen = sheet
form / druckform = cliche, printing block.(mold as I wrote before)

@Cupram

Almost correct.

Bogen is the German word for sheet.
In stamp printing, a cliché is a single element of a printing plate.

A sheet can be made up of panes and each stamp in a pane is printed from a cliché.

The German Druckform would be a "forme."

{url}https://en.wikipedia.org/wiki/Forme_(printing)[/url]