I have a 1970's "Sanyo Ball" brand pachinko machine with a boxing
theme. It has a token slot and appears to have been used in an arcade.
The problem is that the front case is locked so I can't operate the
game. The lock is a 5-prong cylindrical lock marked with an "S". I've
checked online for ways to open this lock and found only 6- and
7-prong picks. I don't want to drill out the lock or otherwise harm
the machine. Please let me know how I can pick a 5-prong cylindrical
lock or where I can get equipment to do so. (Please don't give me
links/or info for picking other types of locks as this won't help me.)
Alternatively, who could I contact at Sanyo to get a replacement key?