Bosnia & Hercegovina Question

Sorting my collection I discovered an interesting perfin stamp that's quite different in size to the others of the same type.

Does anyone know about those "bigger" stamps? Or was it just a common perforating error to that time?

The overall size is bigger but the designs seem to be the same size. The right stamp could be a bottom row stamp?

The stamps are identical in size really.
What you see is the result of "Line Perforation" whereby the sheet of stamps are perforated by lines in one direction, the sheet swivelled 90 degrees and the sheet perforated again in lines. They are not "errors".

The result is stamps of all sorts of sizes when measured outside the printed design, as opposed to "Comb perforation" where generally, the stamps appear in more regulated sizes.

Is it important?
Well the Half Penny Australian KG5 green, single line perf issue changes from a Catalogue of $6 to $12,500

British Guiana Comb Perf v Line Perf.

Thanks Rod!

So I have to find someone, who collects the bigger ones.

The difference between the two perf methods are easy to see in a block of four. Is there any way to tell them apart from a pair or even a single stamp?

Dan

It is just a oddity which happens all around the world with different printers and I never heard any one paying extra for it . England seems to have many and called a WING MARGIN ,interesting but never seen a collection or a demand for them .

Mirman,
absolutely ! there is. I'll have dig out a scan, just look at teeth at the four corners of any stamp, a "Comb" perf will have a lovely "dent" (partial hole) in each corner, exactly the same.

A line perf stamp will have a raggedy uneven corner here and there.

Once noted never forgotten.

Here are the corners of 2 Australian self stick, and 1 "Comb" perf
Can you note the "dent" it will appear so on every corner.



The Pins that create the teeth of a "Comb" perforated stamp, from an Australian "Grover" perforator.