From top to bottom, the brass jewellers tweezers are about 4 3/4" long. Fine condition. Shapely profile.
The brass and steel calipers are ~5" long. When closed, the edge of the sliding plate sticks out for easy adjustment.
Finally, the Chesterman No. 1400A calipers are 4 1/4" long. Metric and imperial gradations accommodating up to 3" in the jaws. All uncleaned as found.