2010 marks the centenary of Australia's first coins - the florin (2 shillings), shilling, sixpence and threepence. Each coin was produced at the Royal Mint in London, with the obverse and reverse of the 1910 florin shown on the stamps. The miniature sheet is embellished with silver foil printed with four colour process. Collectors may notice a number of similarities between this issue and the 2005 issue for the 150th anniversary of the first coin produced in Australia.

Issue Information
As with the 2005 coin issue, there are two sheet stamps (representing the small letter and highest large letter rates) and an embellished miniature sheet.

Gummed Sheet Stamps
The two sheet stamps are issued in individual sheets. There is no decoration in either gutter.

The $2.75 stamp (without embellishment) also exists in the Canberra Show miniature sheet. This stamp is identical to the sheet stamp.

 
Sheet stamps

Gummed Miniature Sheet Stamps
The two stamps from the miniature sheet are die-stamped with silver foil, with is then oveprinted with four colour process and embossed. An image of the miniature sheet stamps will be added when the stamps are available.

The $2.75 stamp (without embellishment) also exists in the Canberra Show miniature sheet. This stamp is identical to the sheet stamp described above.

Miniature Sheet stamps

Gummed Miniature Sheets
The coins and embellishment continue into the sheet margin. I have seen at least two miniature sheets where the embossing has been misplaced by at least a millimetre. It has also been reported on Stampboards that some examples of the miniature sheets have been embossed twice.

Miniature sheet

It also appears that a mistake was made with the postmarking of first day covers. Miniature sheet first day covers have been stamped twice - once at the bottom, and again on the $2.75 stamp. The second postmark is in the same position as the postmark on the sheet stamp first day cover. It is not known if every miniature sheet first day cover has been postmarked twice.

  
Sheet stamp and miniature sheet first day covers

Canberra Miniature Sheet Stamp
The $2.75 stamp also appears in the Canberra Stamp Show miniature sheet issued on 12 March 2010. This stamp is new on a specialised level due to a change in printer.

Canberra Miniature Sheet

Postal Stationery
Two maximum cards were issued, one for each stamp.

Maximum Cards

Issue Summary
The table below summarises the above information. The cost of each item is given, along with a total for each section. In some cases the stamps are only available from self-adhesive booklets (sold at face value), or from prestige booklets, souvenir sheets or folders (sold above face value).

Item and Description	Cost
For the General Collector
Gummed sheet stamps 2 values from sheets (55c, $2.75) Miniature sheets Miniature sheet	$3.30   $3.30
Total	$6.60
For the Specialised Collector
Miniature sheet stamps 2 embellished stamps from miniature sheet $2.75 stamp from Canberra miniature sheet (new printer) Blocks, pairs and strips Se-tenant horizontal pair from miniature sheet Postal stationery Maximum cards	$3.30 $5.30   $3.30   $4.80
Total	$16.70
Grand Total	$23.30

References
Wikipedia, accessed 19 December 2009
Australia Post, Australian Stamp Bulletin, No. 302, January-February 2010

If you have more information, or spot an error, please e-mail me.