Postal. Salas de blanqueamiento y de secado. The Royal Mint. Londres. Principios del siglo XX.
46151
Postal
Cartulina
British Royal Mint
Documentación numismática
Edad contemporánea (Hacia 1910-1930)
Ancho 39.00 mm
Altura 140.00 mm
Altura 140.00 mm
Postal de las Salas de blanqueamiento y de secado en la ceca de Londres. Pertenece a una serie sobre la acuñación de moneda en la Royal Mint.
A/ LONDON. THE ROYAL MINT. BLANCHING OR PICKLING ROOM AND DRYING ROOM.
R/ POST CARD - British throughout
BLANCHING OR PICKLING ROOM. The Rotary Earthenware Barrels (Top View).
The blanks after annealing, are given a suitable acid treatment in these barrels, until the surfaces of the blanks are quite bright.
DRYING ROOM. The Rotary Hot Air Dryers.
After acid treatment, the blanks are dried by revolving them in drums through which hot air is circulated.
A/ LONDON. THE ROYAL MINT. BLANCHING OR PICKLING ROOM AND DRYING ROOM.
R/ POST CARD - British throughout
BLANCHING OR PICKLING ROOM. The Rotary Earthenware Barrels (Top View).
The blanks after annealing, are given a suitable acid treatment in these barrels, until the surfaces of the blanks are quite bright.
DRYING ROOM. The Rotary Hot Air Dryers.
After acid treatment, the blanks are dried by revolving them in drums through which hot air is circulated.
05-06-2020