1903 Process To Fixate Nitrogen From Air Developed Vintage Ad Trade Card

Description

1903 Process To Fixate Nitrogen From Air Developed Vintage Ad Trade Card
NOTE:
THESE ARE NOT POSTCARDS
THEY ARE TRADE/ADVERTISING CARDS.
THEY ARE MUCH SMALLER THAN A STANDARD POSTCARD
AND
THERE IS ADVERTISING TEXT ON THE BACK!
THE CARD DIMENSIONS ARE APPROXIMATELY
2 3/4 '' x  2 ''  or  7 cm. x  5 cm.
ORIGINAL VINTAGE ADVERTISING CARD
1903 PROCESS TO FIXATE NITROGEN FROM AIR DEVELOPED BIRKELAND AND EYDE
A process for the fixation of nitrogen by passing air through an electric arc to produce nitrogen
oxides. It was introduced in 1903 by the Norwegian chemists Kristian Birkeland (18671913)
and Samuel Eyde (18661940). The process is economic only if cheap hydroelectricity is
available.
THE CARD DIMENSIONS ARE APPROXIMATELY
2 3/4 '' x  2 ''  or  7 cm. x  5 cm.
NOTE:
THE IMAGE ABOVE IS LARGER THAN THE CARD
TO SHOW THE DETAIL.
THE REVERSE SIDE HAS FRENCH AND DUTCH TEXT
ABOUT THE SUBJECT
NOTE:
THESE ARE NOT POSTCARDS
THEY ARE TRADE/ADVERTISING CARDS.
THEY ARE MUCH SMALLER THAN A STANDARD POSTCARD
THE PAPER IS MUCH THINNER THAN USED ON A POST CARD
AND
THERE IS ADVERTISING TEXT ON THE BACK!
THE BACK MAY HAVE MILD TO MODERATED INPERFECTIONS!
THERE MAY BE:
-SLIGHT PAPER LOSS
- SMUDGING
- ROUNDED CORNERS
- WEAK CORNERS
- SIGHT GLUE ADHESION ON BACK
SEE THE IMAGES ABOVE
Jacques Odds 2-5-2022 148
WE COMBINE SHIPPING
BUY 1 TO 4 TRADE ADVERTISING CARDS AND THE TOTAL TO SHIP IS
BUY 5 TRADE ADVERTISING CARDS AND SHIPPING IS FREE
NOTE:
ON LARGER INTERNATIONAL ORDERS WE MAY REQUIRE REGISTERD
MAIL AND WILL SPLIT THE COST WITH THE BUYER.
INQUIRE IF CONCERNED!