In 1975 the old district Steinfurt was merged with the district Tecklenburg , and together with Greven and Saerbeck from the old district MÃ 1\/4 nster the current district was made . In 1975 the old district Steinfurt was merged with the district Tecklenburg , and together with Greven and Saerbeck from the former district MÃ 1\/4 nster the current district was formed .