I will ask for 14 days return grantee, if he answer yes is it a solid assurance?
also, he said the tube is from 1981. is it possible?
In his pics I can barley see the hard yellow print that is related to the 421A. it look more grey to me. and the font is very different than all that i've seen!
I think you might be better off with 2 TS-5998, the WE421A is really over priced IMO.