The bicoloured stamps dominated from the first issue 48 sk in 1870 until the last
issues came in 1905. This is the longest period in Danish philately, where one type
of stamps have dominated.
It is not a surprise that nearly all values exists in a large number of varieties
due to different perforation, watermark or colour. Most of the values can be divided
into the specific print based on the mentioned differences.
The values did not change much during the period from 1870 to 1905 - except that
the coin changed form sk (skilling) to oere (øre) in 1875.
The stamps were printed with the frames and the oval with the value separately. The
frames were used on different values and had to be replaced more frequently than
the plates with the value. There are five different types of frames. And all five
types of frames exist in normal position and inverted position. This means that there
are 10 different types of frames. No value exist with all types of frames. The different
types of frames are called frame type 1, frame type 2 etc.
Below you find illustrations of the different types of frames. Normally it is not
difficult to see the difference between the types. The two types 2 and 3 are the
most difficult to distinguish.
For the identification of the position of the frame (normal or inverted), the easiest
is to look at the upper left corner of the stamp. Or you can use the opposite corner
- it is the lower right corner. It is the same corner depending if it is a normal
frame or an inverted frame. It might appear to be a little difficult - but look at
the illustrations below. On the normal frame the first line in the drawing in the
upper left corner is vertical in the beginning like the two frame lines. On the inverted
frame the first line in the drawing is pointing away from the two frame lines.
The fives types of frames are recognised by the following characteristics (described
as normal frames!).
Frame type 1. The frame has thicker lines than the other frames. The five feathers
in the corners are close to 3 mm broad, while they are close to 2½ mm in the other
types of frames.
Frame type 2. The frame has narrow feathers in the middle, which are thin and sharp.
In the lower right corner the feather in the middle is very thin and a little crooked.
Frame 2 was not used on the sheets for stamps with øre. A few frames were used later
with sheets mainly of frame 3 stamps. Øre stamps with frame 2 are rare. Øre stamps
with frame 2 are not known with inverted frame.
Frame type 3. The frame looks a lot like rammetype 2 (frame 2), but the feathers
are a little shaper and the lower right corner does not differ significantly from
Frame type 4. The frame is normally easy recognised by the middle feather in the
lower left corner. The tip is cut off.
Frame type 5. This frame is easily recognised by the middle feathers, which are all
with round tips.