brush shop; brushmaker; brush seller
Refers to a shop that makes or sells calligraphy brushes, or the person who makes them. Often associated with traditional calligraphy supplies.
祖父は地元で筆屋を営んでいます。
My grandfather runs a brush shop locally.
Compound of 筆 (fude, 'brush') and 屋 (ya, 'shop' or 'dealer').