The important arm in this picture is the only one not reaching out. It belongs to Sandy Koufax of the Los Angeles Dodgers, and it is the strong arm of the team. Last week in San Francisco, Sandy used it to win his 22nd game and lead the Dodgers closer to the National League pennant. Should the Dodgers win that pennant, and only the St. Louis Cardinals can stop them, Koufax stands to make $9,000 to $12,000 as his share of the World Series receipts. Dodger Owner Walter O'Malley would make a lot more. Assuming that the Series goes five games, O'Malley's Dodger Stadium will take in more than $1.5 million, while Los Angeles businessmen estimate they will profit by $7 million or so from the tourist trade, money that was lost last year when the Koufax arm did not function for three months. Recently Koufax has been drawing 7,000 extra people into Dodger Stadium when he pitches, and as many as 15,000 extra on the road. He is in one of the finest bargaining positions a ballplayer can attain. If the Dodgers win in 1963, what will Sandy Koufax be worth in 1964? Now being paid a salary of $40,000, he might follow the lead of another great fastball pitcher, Bob Feller. In 1946 Feller worked out a bonus arrangement that resulted in his getting $45,000 plus a share of the gate receipts. This netted him another $41,500. Right now the arms are all reaching for Sandy, but a month from now he may be in a position to consider a happy reach of his own.