San Marino's 1975 coinage series was part of a broader push by the republic to issue collectible annual sets during the 1970s, a period when the tiny enclave was aggressively expanding its numismatic program as a legitimate revenue stream. Most pieces from these sets went directly into collector hands and never circulated, which accounts for the overwhelmingly pristine condition of survivors.
San Marino's 1975 coinage series was part of a broader push by the republic to issue collectible annual sets during the 1970s, a period when the tiny enclave was aggressively expanding its numismatic program as a legitimate revenue stream. Most pieces from these sets went directly into collector hands and never circulated, which accounts for the overwhelmingly pristine condition of survivors.