I have 5 Wallstreets of both types and there are 2 RAM slots on all of them. You can get to 512MB using 2 x low density 16 chip 256MB SODIMM of 66 or 100Mhz (you need 100Mhz on the type 1 Wallstreets using 83Mhz BUS).
Do you have a picture of this weird soldered on RAM?
Do you have a picture of this weird soldered on RAM?