Illuminating Power of Different Light Sources Experiment 1920s Trade Ad Card

Description

Illuminating Power of Different Light Sources Experiment 1920s Trade Ad 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 5/8 '' x 1 3/8 ''  or  6.5 cm. x 3.5 cm.
ORIGINAL 1920s TRADE - ADVERTISING CARD
CALCULATING ILLUMINATING POWER OF DIFFERENT LIGHT SOURCES EXPERIMENT
NOTE:
THE REVERSE SIDE HAS TEXT ABOUT THE IMAGE ON THE FRONT SIDE .
THE CARD DIMENSIONS ARE APPROXIMATELY
2 5/8 '' x 1 3/8 ''  or  6.5 cm. x 3.5 cm.
NOTE:
THE IMAGES ABOVE IS LARGER THAN THE CARD
TO SHOW THE DETAIL.
SEE IMAGES ABOVE WITH THE RULER AS A SCALE!
THIS CARD IS NOT A MODERN REPRODUCTION - IT IS AN ORIGINAL
IT IS c90 YEARS OLD
IT IS NOT PERFECT
THERE MAY BE:
PAPER LOSS - SMUDGING - ROUNDED CORNERS
SEE IMAGES ABOVE!
18
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!