The nonprofit Citizen Scholarship Foundation of Holliston is holding its 47th annual antique show Saturday and next Sunday in the Holliston High School gymnasium. The antique show is the foundation’s only significant fund-raiser of the year, and organizers say that all profits go toward scholarships. Since its start in 1964, the foundation has given hundreds of thousands of dollars to Holliston students to help pay for college tuition, according to the foundation. The antique show will include approximately 100 exhibitors. Doors will be open from 10 a.m. to 5 p.m. on Saturday, and from 11 a.m. to 5 p.m. next Sunday. Admission is $7. Parking and refreshments will be available at the high school’s field house.