Showing posts with label frame damage. Show all posts
Showing posts with label frame damage. Show all posts

Saturday, November 24, 2012

Queensland 1 shilling damaged frames

This issue, like all the sideface issues, exhibits damaged frames. For further information on damaged frames for the Queensland 2nd sideface issues, see here.

Most of the damage occurs on the top frame and the right-hand side frame and often both the top and the right-hand side frames are damaged on the same stamp. The examples here show just the most pronounced damage. There are many more examples where lesser damage occurs.

Frame damage at the top left with the holes joining up and creating solid white lines. Click on this image to see it in higher resolution.

Another example of frame damage causing the dots to merge on the top left hand side.

These 4 stamps exhibit frame damage on the top frame

 These 4 stamps exhibit frame damage on the top frame

These 4 stamps exhibit frame damage on the top frame

These 6 stamps exhibit frame damage on the left hand frame

These 3 stamps exhibit frame damage to the bottom frame

These 4 stamps exhibit frame damage to the right hand side frame

These 4 stamps exhibit frame damage to the right hand side frame

These 4 stamps exhibit frame damage to the right hand side frame

These 4 stamps exhibit frame damage to the right hand side frame

These 3 stamps exhibit frame damage to the right hand side frame

Wednesday, November 7, 2012

Queensland 2nd Sideface Damaged Frames

All the Queensland 2nd Sideface issues have a number of frame flaws. Where there are additional frame lines or ink marks outside the frame these are known as reglet flaws. I have covered these here. This post however deals with damaged frames where part of the frame is missing. 

There are three probable causes.

The first is caused by partial strikes which are a variation in the normal balance of coloured and non-coloured parts of the design. These occur when the die and mould meet unevenly so that the die enters the mould at an angle, and therefore not to an even depth over the whole surface. It shows as an under-coloured area and will usually affect the frame or periphery of the stamp.


The second is caused when stripping the copper electrotype from the lead mould which can lead to damage of  the copper electrode. This is because the copper, as deposited by the electric current, is of a fine crystalline composition - hard and brittle - and thus is liable to be broken; and if cracked, the crack may increase during use causing a portion to break away. This latter is more noticeable in the dotted frame portions of the design. When a portion of the mould is torn away in this manner, it causes a flaw which then occurs in all future electros from that mould.

The third involve the gutters between the clichés which have irregular ridges that are normally removed by hand once the "rolling in" process is finished. Damaged frames could be caused by the "hand-finishing" process being a little over-enthusiastic resulting in part of the design being removed along with the irregular ridge.

Examples can be found for the various issues here:

1 Shilling

2 Shilling

Wednesday, August 8, 2012

Queensland 2 shilling brown damaged frames

This issue, like all the sideface issues, exhibits damaged frames. For further information on damaged frames for the Queensland 2nd sideface issues, see here.
 Frame damage at top
  Frame damage at top right
  Frame damage at top left
  Frame damage at top right
  Frame damage at top right
  Frame damage at top centre
  Frame damage at top right


  Frame damage at top right

Frame damage at top right. It is interesting that all my examples involve the top frames. In other sideface issues other frames besides the top frames exhibit these characteristics.