622 Electricity / Electricité Other proofs
Lot No |
Type |
Description |
Price |
10074 |
EP |
LIBERIA (1980) Hydro-electric plant. Imperforate proof mounted on Format International Security Printers card. Scott No 756, Yvert No 879.
|
AVAILABLE AT $60 |
13090 |
EP |
AUSTRIA (2019) Victor Kaplan. Turbine. Black print.
|
AVAILABLE AT $15 |
18713 |
EP |
GERMANY (1957) Spark gap transmitter*. Photo essay (See Note) of unaccepted design for 100th anniversary of birth of Heinrich Hertz. Scott No 762, Yvert No 131.
|
AVAILABLE AT $60 |
18714 |
EP |
GERMANY (1957) Electromagnetic waves. Candle. Photo essay (See Note) of unaccepted design for 100th anniversary of birth of Heinrich Hertz. Scott No 762, Yvert No 131.
|
AVAILABLE AT $60 |
18716 |
EP |
GERMANY (1957) Electromagnetic lines of force. Candle. Photo essay (See Note) of unaccepted design for 100th anniversary of birth of Heinrich Hertz. Scott No 762, Yvert No 131.
|
AVAILABLE AT $60 |
18717 |
EP |
GERMANY (1957) Electromagnetic lines of force. Stylised people. Photo essay (See Note) of unaccepted design for 100th anniversary of birth of Heinrich Hertz. Scott No 762, Yvert No 131.
|
AVAILABLE AT $60 |
18718 |
EP |
GERMANY (1957) Heinrich Hertz. Photo essay (See Note) of unaccepted design for 100th anniversary of birth of Heinrich Hertz. Scott No 762, Yvert No 131.
|
AVAILABLE AT $60 |
18719 |
EP |
GERMANY (1957) Magnetic lines of force. Waves. Photo essay (See Note) of unaccepted design for 100th anniversary of birth of Heinrich Hertz. Scott No 762, Yvert No 131.
|
AVAILABLE AT $60 |
18721 |
EP |
GERMANY (1966) High voltage power transmission tower. Photo essay (See Note) of unaccepted design for 75th anniversary of discovery of 3-phase transmission by Dolivo & Dobrowolsky. Scott No 965, Yvert No 378.
|
AVAILABLE AT $60 |
18722 |
EP |
GERMANY (1966) Transmission pole with insulators. Photo essay (See Note) of unaccepted design for 75th anniversary of discovery of 3-phase transmission by Dolivo & Dobrowolsky. Scott No 965, Yvert No 378.
|
AVAILABLE AT $60 |