Market Codes aka Right Societies can be used to determine the country of origin for Vinyl records. This section list the market code information of the codes listed on the record labels. Note that the Country Market Code does not necessarily produced in that country, but that the record is intended to be sold in that country. Export/import records can be recognized by examing/matching the market code with other "country" related information on the label. Eg Led Zeppelin II ATL SD 8236 has printed "Gema" in the top right of the label. While the label bottom reads Mfg Atlantic Recording Corp... Broadway New York. This indicates that this record was Made in the USA and destined as an export record for Germany, most likely for the American Forces located in Germany.
MCPS stands for Mechanical-Copyright Protection Society.
It is a UK-based organization responsible for collecting and distributing royalties for the mechanical reproduction of music. This includes formats such as:
When MCPS appears on a record label—like on the Warfare – Two Tribes EP—it indicates that the release complies with licensing rules for reproducing copyrighted musical compositions, and that royalties are (or were) paid to the songwriters and publishers via MCPS.