the American Design patent with number D188,151 was made on March 12 1959. It was granted June 7 1960. The leaflet of this postal scale presents directions for use and also a simplified postal rates survey with the date January 1 1964. This was not a date on which an official change of postal rates was made in the USA. It's remarkable to see this box has a sticker of a Scottish shop. Apparently this letter scale was sold outside the United States as well. The scale has a metal shifting poise. With this, the scale can be adjusted per half an ounce. The maximum of the range is 2 ounces. Below some more pictures of this combined letter scale, letter opener and magnifier.
figure 1 of US patent 2,949,287 |
animation: rocking the scale |
the first 2 figures of US Design patent D188,151 |
animation: shifting the counterweight |
Jenners, Edinburgh, Scotland |
comprehensive leaflet |
part of leaflet |
as a letter scale |
as a letter opener |
as a magnifier |
metal poise |
molded name of scale |
as a magnifier |
« Sol collection: part 8 « | © copyright André Sol | version: August 8, 2004 |