Basil,
If you want a powder trickler I will look for the one I have, that I don't use, and if you pm me your address I will send it to you.
You can then feel safe in the knowledge that you are now, or will be, a member of the 'Powder Trickler's Association'.
For many years I had no access to scales, tricklers or Chrono's all I used was a powder dipper, some folk I knew used home made powder dippers out of shell cases.
As far as I can remember no one suffered a blow up/out or near miss and all got on with the job of shooting Deer.
The 'Lee loader' works on the same principle and was used, probably still is, all over the world.