5 small 1920s-30s Czech silver plate & glass 1-strand clasps.. b8-mx3

Collection of 5 small oblong silver plate and colored glass stone 1-strand box clasps from Czechoslovakia. These authentic and rare components date back to the 1920s-1930s. The push-in tongues have been tested and snap in securely. Originally from Art Deco necklaces, these clasps are ideal for repairing and recreating beaded necklaces from that era. Three of the clasps are stamped CZECHOSLOVAKIA. Their sizes range from 15x5mm to 17x6mm. They were collected long ago by an antique jewelry dealer and have been in storage for many years.