Sheet of 20 x $1.70 'Sea ice microbial communities' gummed stamps.
Scientists have discovered bacteria that use light to make energy molecules in their cells. Several species of bacteria respond to particular colours of light. To help understand more, sheets of plastic are placed over the ice and the bacteria’s responses to contrasting colours are analysed.
Explore the work of New Zealand’s leading Antarctic sea ice scientists with this Ross Dependency stamp issue. Click here to find out more.
| Date of issue: | 2 November 2022 |
|---|---|
| Number of stamps: | Four gummed stamps |
| Denominations: | $1.70, $3.00, $3.80 & $4.30 |
| Designed and illustrated by: | Chris Jones, Graphetti , Wellington, New Zealand |
| Printer and process: | Southern Colour Print, New Zealand by lithography |
| Number of colours: | Four process colours plus overgloss |
| Stamp size and format: | 30mm x 40mm (vertical) |
| Miniature sheet size and format: | 150mm x 90mm (horizontal) |
| Paper type: | Arconvert securpost premium gummed 110gsm |
| Number of stamps per sheet: | 20 |
| Perforation gauge: | 13.33 x 13.6 |
| Special blocks: | Plate/imprint blocks could be obtained by purchasing at least six stamps from a sheet. Barcode blocks were available in A and B formats. |
| Period of sale: | These stamps remained on sale until 1 November 2023. First day covers were only available until 1 January 2023. |