These may not all belong to this Ewing, although similarity of marks make it likely).
Mark T1 Mark T2
Front bottom centre Lower front of visiting card
Mark T3 was on the back of this. Mark T4 was on the back of this.
Date: 1866 Date:
Mark T3 Mark T4
Back centre Back centre of visiting card
Mark T1 was on the front of this. Mark T2 was on the front of this.
Date: 1866 Date:
Mark T5 Mark T6
Back centre of visiting card Back centre of visiting card
Date: 1869 Date
Mark T7 Probably Toronto. Front lower
Date: