Seattle Mariners Baseball Game Used Jersey. 1977, set 1, number 37. Number 37 during that year was Mike Kekich. Jersey is in very nice condition with a few stains (see picture of stain above a in Mariners on front of jersey). Great collector’s item as it is the first year of the team. Please write with any questions. The item “Seattle Mariners Game Used Jersey 1977 Kekich” is in sale since Friday, July 22, 2016. This item is in the category “Sports Mem, Cards & Fan Shop\Game Used Memorabilia\Baseball-MLB\Jerseys”. The seller is “diptera” and is located in Moscow, Idaho. This item can be shipped to United States.