Take the subway (Hanzomon or Ginza line) to Omotesando Station.

Go out Exit B2 and walk straight (Aoyama Dori) until you are in front of Kinokuniya food store.

If you stand with your back to Kinokuniya and look straight down the street in front of you (Kotto Dori), Max Mara will be on the left of the street.

Walk down Kotto Dori on the right side.

Keep your eye open for the Nikka Whisky building on the left side of the street.

When come to it, a shop called The Blue Dog Gallery should be on the corner your right. Turn right at that corner.

Shosaikan is a few yards in on the left.

Pen Boutique Shosaikan
5-13-11 Minami Aoyama, Minato-ku
Tel: 03-3400-3377
Hours: 11:00 a.m to 8:00 p.m.
Open all year, no holidays

http://www.shosaikan.co.jp/ (Japanese)