Originally Posted by POTRZBE:
Lest we forget Engine House Hobbies in semi beautiful Gaithersburg, The Toy Exchange in Wheaton, an all gauge store in Crofton whose name escapes me and a little further afield, Star Hobbies in Annapolis for some NOS obscure stuff.
POTRZBE;
The store you're trying to remember is GPA Hobbies, on Route 3 South.