We have been fortunate to obtain a number of these wonderful, but horribly racist, trade advertising cards for the ARM & HAMMER SODA brand of washing powder. This one is double sided on paper measuring 5 5/8" x 3 1/8" and is in very good condition for age....I would think that this would date to pre 1900. There is a pencil date notation on the border which can of course be erased quite easily. The group looks to be from a series possibly.
At Molloy's MEGA ANTIQUES CENTRE, Takapuna, Auckland, New Zealand
Specialists in Pacific Islands Items, Victoriana, And a Fascinating Range of General Collectibles