That's the size of a UK two pence or a US quarter.
CLASSICAL MUSIC COMPOSERS BADGE BUTTON PIN SET (Size is 1inch/25mm diameter)
Piano Bench of Classical Music : Piano Solos by various classical composers.
BRITISH CLASSICAL COMPOSERS Autograph Lot MICHAEL TIPPETT & PETER DICKINSON AMQS
GUSTAV MAHLER BADGE BUTTON PIN (Size is 1inch/25mm diameter) CLASSICAL ROMANTIC
MIXED COMPOSERS CD SPECTACULAR ROMANTIC CLASSICS SEE PICTURES FOR TITLES
