Finally got a vented 302. Everything seems to be stamped 1937. Small plungers, vent under the cradle. Interesting dial - clearly stamped 37, but is also stamped 5H. Dials smooth - doesn't have the clicking sound like the #2 or 4, although it looks like a recycled #2. Pretty dirty, but I've cleaned up worse. This is my next project phone. Handset is newer, with parts dated 41 and newer, so I will replace with a nice E1.
Sure is beautiful! Maybe a quick wipe down... haha
Ben
That would be a cool project phone. A lot of TLC, and a challenge. Always a balance between removing rust and corrosion versus keeping as much original, including dates. Preserving dates might not be possible in this case.