Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_15635768_1 ( printer VARCHAR, place_of_issue VARCHAR )

### Question ###
Who was the printer of Estes Park, Colorado?

### Accurate SQL ###

SELECT printer FROM table_15635768_1 WHERE place_of_issue = "Estes Park, Colorado"