I noticed your post of these on the other forum as well- are you sure there aren’t any other numbers stamped into the base? All of pics show the same view point.
@RealMcCoy
If possible- grab a magnifying glass and look closely at the numbers that are located on the glass pinch just above the tube socket. These may/may not be helpful identifying your tubes. (See attached of one of your tubes).
I noticed your post of these on the other forum as well- are you sure there aren’t any other numbers stamped into the base? All of pics show the same view point.