Wow, talk about thinking alike. I talked with Walt this morning - great guy. Anyway his hours are:
Thurs & Fri 11 - 6
Sat. 11 - 5
BTY his new shop on 8 Pitts St. in Berlin is now called Walt's Train Shop (410-641-2438). The shop is smaller now (600 sq') but he now only sells trains - nothing else. Hope this helps.