What are the adjectives in the following sentence? three silver airplanes streaked across the blue sky

What is implied in this sentence from mark twain's "the £1,000,000 bank-note"? i was puzzled, and wanted to discuss the matter a little further, but they didn't; so i took my leave, feeling hurt and insulted to be made the butt of what was apparently some kind of a practical joke, and yet obliged to put up with it, not being in circumstances to resent affronts from rich and strong folk.

How many lynching took place in the south between 1877 and 1950

What do critics say about art happenings and flash mobs