Sometimes it can be almost all removed but it rather depends on how long the stuff was left in there. Almost every bowl I come across has some similar marks. There is also a couple of cracks to the edge of the large pan. Should they ever get out of balance, rather unlikely, there is a small box of ball bearings on the underside of the small pan which is reached by undoing a screw on the top of the pan.
They are a nice size, 12 1/2 wide and 7 high, not taking up too much room on your worktop. The BRASS BELL WEIGHTS are in great condition and are real quality with rounded rather than sharp edges. You may be concerned that they have to be sent such a long way but I can assure you there is no need. I use large sturdy boxes and pack all the spaces so they remain rigid. The scales are wrapped in large bubble wrap and bound with tape so they do not move about.
The weights are packed separately also in large bubble wrap. I will gladly provide further information or photographs. The item "VINTAGE ENGLISH KITCHEN SCALES BROWN 7 QUALITY BRASS BELL WEIGHTS" is in sale since Friday, April 5, 2019.This item is in the category "Antiques\Mercantile, Trades & Factories\Scales". The seller is "stuffbyiris" and is located in Alston. This item can be shipped worldwide.