|
|
|
SCOTT NO
|
B273 SP208
|
|
DATE OF ISSUE
|
1958 Mai 31
|
|
FACE VALUE
|
10c + 10c
|
|
COUNTRY
|
Switzerland
|
|
|
|
|
DESCRIPTION
|
The stamp shows fluorite crystal. It is a very attractive mineral. It has a glassy luster. It turns flourescent in ultra violet light. It is used to produce a fluid slag in steel making & smelting ores. The surtax was charged for needy mothers.
|
|
|
|
|
VARIATION DESCRIPTION
|
The MM reads '2nd Atomic Conference'
|
|
|
|
|
GEMSTONE
|
Fluorite
|
|
VARIATION
|
Meter Mark, Block, Souvenir Sheet, First Day Cover, Envelope
|
|