What number did Walter Johnson wear as a player and manager?

When Walter Johnson was playing — 1907-1927 — major-league teams had not yet adopted uniform numbers. The Washington Senators first added uniform numbers in 1931, so for the first two years Johnson managed the Senators — 1929-1930 — he had no uniform number. He wore #28 in 1931, and #25 in 1932, his last year as manager.