DISRAELI DOCUMENTS
This is an Argentine application to trademark the initials 'J.C.' for category 12 products (vehicles including bicycles). The application is in the name of Jesus Esteban Catgenova from the city of Rosario in Santa Fe Province, Argentina. The application was made in February 1983. It was refused.
You might plausibly guess the 'J.C.' relates to 'Jesus Catgenova'. You might also guess that this trademark could have something to do with the JC brand of derailleurs - but this is far less certain!